Definition of arsenic in English:

arsenic

nounˈɑːs(ə)nɪkˈɑrs(ə)nɪk

mass noun

The chemical element of atomic number 33, a brittle steel-grey metalloid.
Example sentencesExamples
- Many feared the problems had been caused by once dormant heavy metals, including cadmium and arsenic, now emerging from a redundant coke workings.
- It is also extremely likely that chemicals such as cyanide and arsenic will be leached into the local water systems.
- The ad was based on the latest findings of the National Research Council and a citizens' sampling program that found high levels of cancer-causing arsenic in wood from Home Depot stores nationwide.
- Large numbers of persons in areas of India, Pakistan, and several other countries have been chronically poisoned from naturally occurring arsenic in ground water.
- These chemicals are now a source of arsenic in agricultural soil and in groundwater in the Mid-Atlantic region.
- It's a free for all at that stage,’ said Mr Campion pointing out that treated timber alone can contain poisonous arsenic.
- Studies have suggested that arsenic is able to impair DNA repair enzymes and alter the repair of UV-induced DNA damage.
- First, the roller coaster's wooden components have been treated with copper, chromium and arsenic, a carcinogen.
- After initial reluctance, the Administration has also implemented Clinton-era proposals to reduce arsenic in drinking water and air pollution from diesel trucks and tractors.
- Harvey's team suggests that organic carbon feeds chemical reactions that liberate arsenic from minerals in the soil.
- The 38-year-old lawyer was poisoned with arsenic on September 7, 2004, while flying to the Netherlands.
- Animal research has established a bidirectional effect of selenium and arsenic with each metal preventing a toxic effect of the other.
- Earlier this year, the British journal Lancet published a report saying that a test of strands of George III's hair contained arsenic, which can provoke porphyria attacks.
- Gone will be the chromium and arsenic, which are being replaced by a solution of ammonia.
- In animals and plants, arsenic combines with carbon and hydrogen to form organic arsenic.
- Apart from any physiological effects on chickens themselves or consumers, feed additives introduce tons of organic arsenic into the environment every year, says Stolz.
- Well basically CCA treated timber is treated with copper, chromium and arsenic, which is injected into the wood under pressure.
- Both cadmium and arsenic are ubiquitous in the environment, and exposure through food and water as well as occupational sources can contribute to a well-defined spectrum of disease.
- For eight years they never demanded any lessening of carbon-dioxide emissions and allowed arsenic to remain in the drinking water of millions of Americans.
- In recent month residents have raised complaints after dust containing lethal poisons, including cadmium and arsenic, was found in their homes.

Arsenic compounds (and their poisonous properties) have been known since ancient times, and the metallic form was isolated in the Middle Ages. Arsenic occurs naturally in orpiment, realgar, and other minerals, and rarely as the free element. Arsenic is used in semiconductors and some specialized alloys; its toxic compounds are widely used as herbicides and pesticides

adjectiveɑːˈsɛnɪkɑrˈsɛnɪk

1Relating to arsenic.
Example sentencesExamples
- It turns out that they were victims of chromated copper arsenic poisoning.
- But a subsequent ministry study found arsenic levels in the seabed were 100 times higher at the dumping site than in other parts of the bay.
- MSF doctors still inject sleeping sickness patients with melarsoprol, an arsenic derivative so toxic that it melts plastic syringes and kills 1 in 20 patients.
- Since following UN advice to dig deeper wells 12 years ago, 15,000 serious cases of arsenic poisoning have been identified.
- You'd make a good psychologist, executioner, black widow, arsenic poisoner, heretic queen or commentator.
- In January, the EPA officially ordered a new national arsenic limit of 10 ppb.
- That's why the Republicans kept the Clinton rules on lead disclosure and diesel pollution, and agreed to issue an arsenic standard.
- However, just as the discovery of arsenic contamination undermined years of work to provide clean drinking water, crises such as the current floods demonstrate how easily such progress can be set back.
- After examining her, doctors diagnosed arsenic poisoning and said it was caused by drinking contaminated water in her native village on the India-Bangladesh border since childhood.
- But subsequent medical tests cleared him of any acute or chronic arsenic poisoning.
- One of about 600 Bangladeshi people, who claim they suffered arsenic poisoning because of a Swindon organization, has filed a writ in a damages case worth up to £30m.
- Even the newest idea of converting chicken litter into energy has been called into question because of the risk of airborne arsenic levels that are high enough to cause even more problems.
- The autopsy, which was conducted by Dutch doctors, found excessive arsenic levels in his body, leading to the preliminary conclusion that he was poisoned during the flight.
- They bought television time to attack his efforts to reverse Clinton-era plans to cut arsenic levels in drinking water.
- Another case of arsenic poisoning was that of Claire Booth Luce, a United States ambassador to Italy in the years after World War II.
- According to an autopsy, the activist who had been a staunch critic of human rights violations by the military died of arsenic poisoning.
- The Berkeley folks are also studying 200 bladder cancer patients in Kings County, northern California, where arsenic levels reach 50 ppb.
- He was murdered on September 6 by arsenic poisoning while on a Geruda Airlines flight from Jakarta to Amsterdam.
- Where previously river weed had been gathered to keep the river clear and running free and then was used for fertiliser, this new weed could not be used because of its arsenic content.
- Your article on arsenic poisoning of drinking water in Bangladesh and India (International, August 8) clearly illustrated a terrible disaster for many millions of people.
1. 1.1Chemistry Of arsenic with a valency of five; of arsenic(V).
  Compare with arsenious
  Example sentencesExamples
  Further dilutions only serve to reduce our chance of finding an arsenic ion by an order of magnitude each time.
  This finding is of great concern inasmuch as the protection principle and measures of gaseous arsine are different from the airborne arsenic particulate.
  When heated in air, it reacts with oxygen to form arsenic oxide.
  All of these came from natural sources such as madder, kermes, red and white lead, verdigris, yellow ochre, yellow arsenic sulphide, oak gall, indigo and woad and lapis lazuli.
  So doping silicon with arsenic injects a precious few extra electrons: one for every arsenic atom.
  Paul Ehrlich at Frankfurt started his studies on the therapeutic value of organic arsenic compounds in September 1906.

Origin

Late Middle English (denoting yellow orpiment, arsenic sulphide): via Old French from Latin arsenicum, from Greek arsenikon 'yellow orpiment', identified with arsenikos 'male', but in fact from Arabic al-zarnīḵ 'the orpiment', based on Persian zar 'gold'.

The chemical element arsenic is a brittle steel-grey substance with many highly poisonous compounds, but its root word means ‘gold’. In English the word first referred to a compound of arsenic called arsenic sulphide or yellow orpiment, which was used as a dye and artist's pigment. The word comes from Greek arsenikon, from Arabic az-zarnīk, the root of which was Persian zar ‘gold’.

Rhymes

anthropogenic, autogenic, callisthenic (US calisthenic), carcinogenic, cariogenic, cryogenic, erotogenic, eugenic, fennec, hallucinogenic, Hellenic, hypo-allergenic, photogenic, pyrogenic, radiogenic, schizophrenic, telegenic

Definition of arsenic in US English:

arsenic

nounˈärs(ə)nikˈɑrs(ə)nɪk

The chemical element of atomic number 33, a brittle steel-gray metalloid.
Arsenic compounds (and their poisonous properties) have been known since ancient times, and the metallic form was isolated in the Middle Ages. Arsenic occurs naturally in orpiment, realgar, and other minerals, and rarely as the free element. Arsenic is used in semiconductors and some specialized alloys; its toxic compounds are widely used in wood preservation
Example sentencesExamples
- For eight years they never demanded any lessening of carbon-dioxide emissions and allowed arsenic to remain in the drinking water of millions of Americans.
- After initial reluctance, the Administration has also implemented Clinton-era proposals to reduce arsenic in drinking water and air pollution from diesel trucks and tractors.
- Gone will be the chromium and arsenic, which are being replaced by a solution of ammonia.
- Well basically CCA treated timber is treated with copper, chromium and arsenic, which is injected into the wood under pressure.
- First, the roller coaster's wooden components have been treated with copper, chromium and arsenic, a carcinogen.
- Apart from any physiological effects on chickens themselves or consumers, feed additives introduce tons of organic arsenic into the environment every year, says Stolz.
- In animals and plants, arsenic combines with carbon and hydrogen to form organic arsenic.
- The ad was based on the latest findings of the National Research Council and a citizens' sampling program that found high levels of cancer-causing arsenic in wood from Home Depot stores nationwide.
- It is also extremely likely that chemicals such as cyanide and arsenic will be leached into the local water systems.
- In recent month residents have raised complaints after dust containing lethal poisons, including cadmium and arsenic, was found in their homes.
- The 38-year-old lawyer was poisoned with arsenic on September 7, 2004, while flying to the Netherlands.
- Large numbers of persons in areas of India, Pakistan, and several other countries have been chronically poisoned from naturally occurring arsenic in ground water.
- Animal research has established a bidirectional effect of selenium and arsenic with each metal preventing a toxic effect of the other.
- It's a free for all at that stage,’ said Mr Campion pointing out that treated timber alone can contain poisonous arsenic.
- Earlier this year, the British journal Lancet published a report saying that a test of strands of George III's hair contained arsenic, which can provoke porphyria attacks.
- Many feared the problems had been caused by once dormant heavy metals, including cadmium and arsenic, now emerging from a redundant coke workings.
- Studies have suggested that arsenic is able to impair DNA repair enzymes and alter the repair of UV-induced DNA damage.
- Harvey's team suggests that organic carbon feeds chemical reactions that liberate arsenic from minerals in the soil.
- Both cadmium and arsenic are ubiquitous in the environment, and exposure through food and water as well as occupational sources can contribute to a well-defined spectrum of disease.
- These chemicals are now a source of arsenic in agricultural soil and in groundwater in the Mid-Atlantic region.

adjectiveɑrˈsɛnɪkärˈsenik

1Relating to arsenic.
Example sentencesExamples
- But subsequent medical tests cleared him of any acute or chronic arsenic poisoning.
- He was murdered on September 6 by arsenic poisoning while on a Geruda Airlines flight from Jakarta to Amsterdam.
- Another case of arsenic poisoning was that of Claire Booth Luce, a United States ambassador to Italy in the years after World War II.
- It turns out that they were victims of chromated copper arsenic poisoning.
- You'd make a good psychologist, executioner, black widow, arsenic poisoner, heretic queen or commentator.
- The Berkeley folks are also studying 200 bladder cancer patients in Kings County, northern California, where arsenic levels reach 50 ppb.
- Since following UN advice to dig deeper wells 12 years ago, 15,000 serious cases of arsenic poisoning have been identified.
- That's why the Republicans kept the Clinton rules on lead disclosure and diesel pollution, and agreed to issue an arsenic standard.
- However, just as the discovery of arsenic contamination undermined years of work to provide clean drinking water, crises such as the current floods demonstrate how easily such progress can be set back.
- After examining her, doctors diagnosed arsenic poisoning and said it was caused by drinking contaminated water in her native village on the India-Bangladesh border since childhood.
- But a subsequent ministry study found arsenic levels in the seabed were 100 times higher at the dumping site than in other parts of the bay.
- In January, the EPA officially ordered a new national arsenic limit of 10 ppb.
- Where previously river weed had been gathered to keep the river clear and running free and then was used for fertiliser, this new weed could not be used because of its arsenic content.
- According to an autopsy, the activist who had been a staunch critic of human rights violations by the military died of arsenic poisoning.
- MSF doctors still inject sleeping sickness patients with melarsoprol, an arsenic derivative so toxic that it melts plastic syringes and kills 1 in 20 patients.
- One of about 600 Bangladeshi people, who claim they suffered arsenic poisoning because of a Swindon organization, has filed a writ in a damages case worth up to £30m.
- They bought television time to attack his efforts to reverse Clinton-era plans to cut arsenic levels in drinking water.
- Even the newest idea of converting chicken litter into energy has been called into question because of the risk of airborne arsenic levels that are high enough to cause even more problems.
- Your article on arsenic poisoning of drinking water in Bangladesh and India (International, August 8) clearly illustrated a terrible disaster for many millions of people.
- The autopsy, which was conducted by Dutch doctors, found excessive arsenic levels in his body, leading to the preliminary conclusion that he was poisoned during the flight.
1. 1.1Chemistry Of arsenic with a valence of five; of arsenic (V).
  Example sentencesExamples
  So doping silicon with arsenic injects a precious few extra electrons: one for every arsenic atom.
  All of these came from natural sources such as madder, kermes, red and white lead, verdigris, yellow ochre, yellow arsenic sulphide, oak gall, indigo and woad and lapis lazuli.
  When heated in air, it reacts with oxygen to form arsenic oxide.
  Further dilutions only serve to reduce our chance of finding an arsenic ion by an order of magnitude each time.
  Paul Ehrlich at Frankfurt started his studies on the therapeutic value of organic arsenic compounds in September 1906.
  This finding is of great concern inasmuch as the protection principle and measures of gaseous arsine are different from the airborne arsenic particulate.

Origin

Late Middle English (denoting yellow orpiment, arsenic sulfide): via Old French from Latin arsenicum, from Greek arsenikon ‘yellow orpiment’, identified with arsenikos ‘male’, but in fact from Arabic al-zarnīḵ ‘the orpiment’, based on Persian zar ‘gold’.

单词	arsenic
释义	Definition of arsenic in English: arsenic nounˈɑːs(ə)nɪkˈɑrs(ə)nɪk mass noun The chemical element of atomic number 33, a brittle steel-grey metalloid. Example sentencesExamples Many feared the problems had been caused by once dormant heavy metals, including cadmium and arsenic, now emerging from a redundant coke workings. It is also extremely likely that chemicals such as cyanide and arsenic will be leached into the local water systems. The ad was based on the latest findings of the National Research Council and a citizens' sampling program that found high levels of cancer-causing arsenic in wood from Home Depot stores nationwide. Large numbers of persons in areas of India, Pakistan, and several other countries have been chronically poisoned from naturally occurring arsenic in ground water. These chemicals are now a source of arsenic in agricultural soil and in groundwater in the Mid-Atlantic region. It's a free for all at that stage,’ said Mr Campion pointing out that treated timber alone can contain poisonous arsenic. Studies have suggested that arsenic is able to impair DNA repair enzymes and alter the repair of UV-induced DNA damage. First, the roller coaster's wooden components have been treated with copper, chromium and arsenic, a carcinogen. After initial reluctance, the Administration has also implemented Clinton-era proposals to reduce arsenic in drinking water and air pollution from diesel trucks and tractors. Harvey's team suggests that organic carbon feeds chemical reactions that liberate arsenic from minerals in the soil. The 38-year-old lawyer was poisoned with arsenic on September 7, 2004, while flying to the Netherlands. Animal research has established a bidirectional effect of selenium and arsenic with each metal preventing a toxic effect of the other. Earlier this year, the British journal Lancet published a report saying that a test of strands of George III's hair contained arsenic, which can provoke porphyria attacks. Gone will be the chromium and arsenic, which are being replaced by a solution of ammonia. In animals and plants, arsenic combines with carbon and hydrogen to form organic arsenic. Apart from any physiological effects on chickens themselves or consumers, feed additives introduce tons of organic arsenic into the environment every year, says Stolz. Well basically CCA treated timber is treated with copper, chromium and arsenic, which is injected into the wood under pressure. Both cadmium and arsenic are ubiquitous in the environment, and exposure through food and water as well as occupational sources can contribute to a well-defined spectrum of disease. For eight years they never demanded any lessening of carbon-dioxide emissions and allowed arsenic to remain in the drinking water of millions of Americans. In recent month residents have raised complaints after dust containing lethal poisons, including cadmium and arsenic, was found in their homes. Arsenic compounds (and their poisonous properties) have been known since ancient times, and the metallic form was isolated in the Middle Ages. Arsenic occurs naturally in orpiment, realgar, and other minerals, and rarely as the free element. Arsenic is used in semiconductors and some specialized alloys; its toxic compounds are widely used as herbicides and pesticides adjectiveɑːˈsɛnɪkɑrˈsɛnɪk 1Relating to arsenic. Example sentencesExamples It turns out that they were victims of chromated copper arsenic poisoning. But a subsequent ministry study found arsenic levels in the seabed were 100 times higher at the dumping site than in other parts of the bay. MSF doctors still inject sleeping sickness patients with melarsoprol, an arsenic derivative so toxic that it melts plastic syringes and kills 1 in 20 patients. Since following UN advice to dig deeper wells 12 years ago, 15,000 serious cases of arsenic poisoning have been identified. You'd make a good psychologist, executioner, black widow, arsenic poisoner, heretic queen or commentator. In January, the EPA officially ordered a new national arsenic limit of 10 ppb. That's why the Republicans kept the Clinton rules on lead disclosure and diesel pollution, and agreed to issue an arsenic standard. However, just as the discovery of arsenic contamination undermined years of work to provide clean drinking water, crises such as the current floods demonstrate how easily such progress can be set back. After examining her, doctors diagnosed arsenic poisoning and said it was caused by drinking contaminated water in her native village on the India-Bangladesh border since childhood. But subsequent medical tests cleared him of any acute or chronic arsenic poisoning. One of about 600 Bangladeshi people, who claim they suffered arsenic poisoning because of a Swindon organization, has filed a writ in a damages case worth up to £30m. Even the newest idea of converting chicken litter into energy has been called into question because of the risk of airborne arsenic levels that are high enough to cause even more problems. The autopsy, which was conducted by Dutch doctors, found excessive arsenic levels in his body, leading to the preliminary conclusion that he was poisoned during the flight. They bought television time to attack his efforts to reverse Clinton-era plans to cut arsenic levels in drinking water. Another case of arsenic poisoning was that of Claire Booth Luce, a United States ambassador to Italy in the years after World War II. According to an autopsy, the activist who had been a staunch critic of human rights violations by the military died of arsenic poisoning. The Berkeley folks are also studying 200 bladder cancer patients in Kings County, northern California, where arsenic levels reach 50 ppb. He was murdered on September 6 by arsenic poisoning while on a Geruda Airlines flight from Jakarta to Amsterdam. Where previously river weed had been gathered to keep the river clear and running free and then was used for fertiliser, this new weed could not be used because of its arsenic content. Your article on arsenic poisoning of drinking water in Bangladesh and India (International, August 8) clearly illustrated a terrible disaster for many millions of people. 1.1Chemistry Of arsenic with a valency of five; of arsenic(V). Compare with arsenious Example sentencesExamples Further dilutions only serve to reduce our chance of finding an arsenic ion by an order of magnitude each time. This finding is of great concern inasmuch as the protection principle and measures of gaseous arsine are different from the airborne arsenic particulate. When heated in air, it reacts with oxygen to form arsenic oxide. All of these came from natural sources such as madder, kermes, red and white lead, verdigris, yellow ochre, yellow arsenic sulphide, oak gall, indigo and woad and lapis lazuli. So doping silicon with arsenic injects a precious few extra electrons: one for every arsenic atom. Paul Ehrlich at Frankfurt started his studies on the therapeutic value of organic arsenic compounds in September 1906. Origin Late Middle English (denoting yellow orpiment, arsenic sulphide): via Old French from Latin arsenicum, from Greek arsenikon 'yellow orpiment', identified with arsenikos 'male', but in fact from Arabic al-zarnīḵ 'the orpiment', based on Persian zar 'gold'. The chemical element arsenic is a brittle steel-grey substance with many highly poisonous compounds, but its root word means ‘gold’. In English the word first referred to a compound of arsenic called arsenic sulphide or yellow orpiment, which was used as a dye and artist's pigment. The word comes from Greek arsenikon, from Arabic az-zarnīk, the root of which was Persian zar ‘gold’. Rhymes anthropogenic, autogenic, callisthenic (US calisthenic), carcinogenic, cariogenic, cryogenic, erotogenic, eugenic, fennec, hallucinogenic, Hellenic, hypo-allergenic, photogenic, pyrogenic, radiogenic, schizophrenic, telegenic Definition of arsenic in US English: arsenic nounˈärs(ə)nikˈɑrs(ə)nɪk The chemical element of atomic number 33, a brittle steel-gray metalloid. Arsenic compounds (and their poisonous properties) have been known since ancient times, and the metallic form was isolated in the Middle Ages. Arsenic occurs naturally in orpiment, realgar, and other minerals, and rarely as the free element. Arsenic is used in semiconductors and some specialized alloys; its toxic compounds are widely used in wood preservation Example sentencesExamples For eight years they never demanded any lessening of carbon-dioxide emissions and allowed arsenic to remain in the drinking water of millions of Americans. After initial reluctance, the Administration has also implemented Clinton-era proposals to reduce arsenic in drinking water and air pollution from diesel trucks and tractors. Gone will be the chromium and arsenic, which are being replaced by a solution of ammonia. Well basically CCA treated timber is treated with copper, chromium and arsenic, which is injected into the wood under pressure. First, the roller coaster's wooden components have been treated with copper, chromium and arsenic, a carcinogen. Apart from any physiological effects on chickens themselves or consumers, feed additives introduce tons of organic arsenic into the environment every year, says Stolz. In animals and plants, arsenic combines with carbon and hydrogen to form organic arsenic. The ad was based on the latest findings of the National Research Council and a citizens' sampling program that found high levels of cancer-causing arsenic in wood from Home Depot stores nationwide. It is also extremely likely that chemicals such as cyanide and arsenic will be leached into the local water systems. In recent month residents have raised complaints after dust containing lethal poisons, including cadmium and arsenic, was found in their homes. The 38-year-old lawyer was poisoned with arsenic on September 7, 2004, while flying to the Netherlands. Large numbers of persons in areas of India, Pakistan, and several other countries have been chronically poisoned from naturally occurring arsenic in ground water. Animal research has established a bidirectional effect of selenium and arsenic with each metal preventing a toxic effect of the other. It's a free for all at that stage,’ said Mr Campion pointing out that treated timber alone can contain poisonous arsenic. Earlier this year, the British journal Lancet published a report saying that a test of strands of George III's hair contained arsenic, which can provoke porphyria attacks. Many feared the problems had been caused by once dormant heavy metals, including cadmium and arsenic, now emerging from a redundant coke workings. Studies have suggested that arsenic is able to impair DNA repair enzymes and alter the repair of UV-induced DNA damage. Harvey's team suggests that organic carbon feeds chemical reactions that liberate arsenic from minerals in the soil. Both cadmium and arsenic are ubiquitous in the environment, and exposure through food and water as well as occupational sources can contribute to a well-defined spectrum of disease. These chemicals are now a source of arsenic in agricultural soil and in groundwater in the Mid-Atlantic region. adjectiveɑrˈsɛnɪkärˈsenik 1Relating to arsenic. Example sentencesExamples But subsequent medical tests cleared him of any acute or chronic arsenic poisoning. He was murdered on September 6 by arsenic poisoning while on a Geruda Airlines flight from Jakarta to Amsterdam. Another case of arsenic poisoning was that of Claire Booth Luce, a United States ambassador to Italy in the years after World War II. It turns out that they were victims of chromated copper arsenic poisoning. You'd make a good psychologist, executioner, black widow, arsenic poisoner, heretic queen or commentator. The Berkeley folks are also studying 200 bladder cancer patients in Kings County, northern California, where arsenic levels reach 50 ppb. Since following UN advice to dig deeper wells 12 years ago, 15,000 serious cases of arsenic poisoning have been identified. That's why the Republicans kept the Clinton rules on lead disclosure and diesel pollution, and agreed to issue an arsenic standard. However, just as the discovery of arsenic contamination undermined years of work to provide clean drinking water, crises such as the current floods demonstrate how easily such progress can be set back. After examining her, doctors diagnosed arsenic poisoning and said it was caused by drinking contaminated water in her native village on the India-Bangladesh border since childhood. But a subsequent ministry study found arsenic levels in the seabed were 100 times higher at the dumping site than in other parts of the bay. In January, the EPA officially ordered a new national arsenic limit of 10 ppb. Where previously river weed had been gathered to keep the river clear and running free and then was used for fertiliser, this new weed could not be used because of its arsenic content. According to an autopsy, the activist who had been a staunch critic of human rights violations by the military died of arsenic poisoning. MSF doctors still inject sleeping sickness patients with melarsoprol, an arsenic derivative so toxic that it melts plastic syringes and kills 1 in 20 patients. One of about 600 Bangladeshi people, who claim they suffered arsenic poisoning because of a Swindon organization, has filed a writ in a damages case worth up to £30m. They bought television time to attack his efforts to reverse Clinton-era plans to cut arsenic levels in drinking water. Even the newest idea of converting chicken litter into energy has been called into question because of the risk of airborne arsenic levels that are high enough to cause even more problems. Your article on arsenic poisoning of drinking water in Bangladesh and India (International, August 8) clearly illustrated a terrible disaster for many millions of people. The autopsy, which was conducted by Dutch doctors, found excessive arsenic levels in his body, leading to the preliminary conclusion that he was poisoned during the flight. 1.1Chemistry Of arsenic with a valence of five; of arsenic (V). Example sentencesExamples So doping silicon with arsenic injects a precious few extra electrons: one for every arsenic atom. All of these came from natural sources such as madder, kermes, red and white lead, verdigris, yellow ochre, yellow arsenic sulphide, oak gall, indigo and woad and lapis lazuli. When heated in air, it reacts with oxygen to form arsenic oxide. Further dilutions only serve to reduce our chance of finding an arsenic ion by an order of magnitude each time. Paul Ehrlich at Frankfurt started his studies on the therapeutic value of organic arsenic compounds in September 1906. This finding is of great concern inasmuch as the protection principle and measures of gaseous arsine are different from the airborne arsenic particulate. Origin Late Middle English (denoting yellow orpiment, arsenic sulfide): via Old French from Latin arsenicum, from Greek arsenikon ‘yellow orpiment’, identified with arsenikos ‘male’, but in fact from Arabic al-zarnīḵ ‘the orpiment’, based on Persian zar ‘gold’.
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