chemical

adjective

/ˈkemɪkl/

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connected with chemistry
- changes in the chemical composition of the atmosphere
produced by or using processes that involve changes to atoms or molecules
- chemical reactions/compounds
- chemical processes
Topics Physics and chemistryb1
using or connected with chemicals
- a chemical plant (= a factory producing chemicals)
- chemical agents (= substances)
- the chemical industry
- a chemical attack
- Chemical treatment with chlorine provides some protection against contamination.

Word Originlate 16th cent.: from French chimique or modern Latin chimicus, chymicus, from medieval Latin alchymicus, from alchimia, from Arabic al-kīmiyā', from al ‘the’ + kīmiyā' (from Greek khēmia, khēmeia ‘art of transmuting metals’).

chemical

noun

/ˈkemɪkl/

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a substance obtained by or used in a chemical process
- toxic chemicals
- Toy manufacturers have been banned from using the chemicals.
- exposure to hazardous chemicals
- Farmers are being urged to reduce their use of chemicals and work with nature to combat pests.
- The condition may be caused by an imbalance of chemicals in the brain.
Extra Examples
- We don't use many chemicals on our farm these days.
- chemicals discharged by industry into our lakes and rivers
- Hormones are chemicals that are released in the body and control many important functions.
- This chemical is often used to make cleaning products.
Topics Physics and chemistryb1
Oxford Collocations Dictionary
adjective
- organic
- inorganic
- synthetic
- …
verb + chemical
- manufacture
- produce
- dump
- …
chemical + noun
- factory
- plant
- works
- …
See full entry
Word Originlate 16th cent.: from French chimique or modern Latin chimicus, chymicus, from medieval Latin alchymicus, from alchimia, from Arabic al-kīmiyā', from al ‘the’ + kīmiyā' (from Greek khēmia, khēmeia ‘art of transmuting metals’).

单词	chemical
释义	chemical adjective /ˈkemɪkl/ /ˈkemɪkl/ jump to other results connected with chemistry changes in the chemical composition of the atmosphere produced by or using processes that involve changes to atoms or molecules chemical reactions/compounds chemical processes Topics Physics and chemistryb1 using or connected with chemicals a chemical plant (= a factory producing chemicals) chemical agents (= substances) the chemical industry a chemical attack Chemical treatment with chlorine provides some protection against contamination. Word Originlate 16th cent.: from French chimique or modern Latin chimicus, chymicus, from medieval Latin alchymicus, from alchimia, from Arabic al-kīmiyā', from al ‘the’ + kīmiyā' (from Greek khēmia, khēmeia ‘art of transmuting metals’). chemical noun /ˈkemɪkl/ /ˈkemɪkl/ jump to other results a substance obtained by or used in a chemical process toxic chemicals Toy manufacturers have been banned from using the chemicals. exposure to hazardous chemicals Farmers are being urged to reduce their use of chemicals and work with nature to combat pests. The condition may be caused by an imbalance of chemicals in the brain. Extra Examples We don't use many chemicals on our farm these days. chemicals discharged by industry into our lakes and rivers Hormones are chemicals that are released in the body and control many important functions. This chemical is often used to make cleaning products. Topics Physics and chemistryb1 Oxford Collocations Dictionaryadjective organic inorganic synthetic … verb + chemical manufacture produce dump … chemical + noun factory plant works … See full entry Word Originlate 16th cent.: from French chimique or modern Latin chimicus, chymicus, from medieval Latin alchymicus, from alchimia, from Arabic al-kīmiyā', from al ‘the’ + kīmiyā' (from Greek khēmia, khēmeia ‘art of transmuting metals’).
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