释义 |
blacklegenUK
black·leg B0301100 (blăk′lĕg′)n.1. An infectious, usually fatal bacterial disease of cattle and sometimes of sheep, goats, and swine, caused by Clostridium chauvoei and characterized by gas-containing swellings in the musculature.2. A bacterial or fungal disease of certain plants, such as the cabbage and potato, that causes the stems to turn black at the soil line.3. One who cheats at cards; a cardsharp.4. Chiefly British A worker who is opposed to trade unions; a scab.blackleg (ˈblæklɛɡ) n1. a. a person who acts against the interests of a trade union, as by continuing to work during a strike or taking over a striker's jobb. (as modifier): blackleg labour. 2. (Veterinary Science) Also called: black quarter an acute infectious disease of cattle, sheep, and pigs, characterized by gas-filled swellings, esp on the legs, caused by Clostridium bacteria3. (Plant Pathology) plant pathol a. a fungal disease of cabbages and related plants caused by Phoma lingam, characterized by blackening and decay of the lower stemsb. a similar disease of potatoes, caused by bacteria4. (Gambling, except Cards) a person who cheats in gambling, esp at cards or in racingvb, -legs, -legging or -leggedBrit to act against the interests of a trade union, esp by refusing to join a strikeblack•leg (ˈblækˌlɛg) n. 1. an infectious, often fatal disease of cattle and sheep caused by the soil bacterium Clostridium chauvoei and characterized by darkened and swollen upper legs. 2. a. a disease of cabbage and other cruciferous plants, characterized by dry, black lesions on the base of the stem, caused by a fungus, Phoma lingam. b. a disease of potatoes, characterized by wet, black lesions on the base of the stem, caused by a bacterium, Erwinia atroseptica. 3. a swindler. 4. Chiefly Brit. a strikebreaker; scab. [1715–25] blackleg Past participle: blacklegged Gerund: blacklegging
Imperative |
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blackleg | blackleg |
Present |
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I blackleg | you blackleg | he/she/it blacklegs | we blackleg | you blackleg | they blackleg |
Preterite |
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I blacklegged | you blacklegged | he/she/it blacklegged | we blacklegged | you blacklegged | they blacklegged |
Present Continuous |
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I am blacklegging | you are blacklegging | he/she/it is blacklegging | we are blacklegging | you are blacklegging | they are blacklegging |
Present Perfect |
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I have blacklegged | you have blacklegged | he/she/it has blacklegged | we have blacklegged | you have blacklegged | they have blacklegged |
Past Continuous |
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I was blacklegging | you were blacklegging | he/she/it was blacklegging | we were blacklegging | you were blacklegging | they were blacklegging |
Past Perfect |
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I had blacklegged | you had blacklegged | he/she/it had blacklegged | we had blacklegged | you had blacklegged | they had blacklegged |
Future |
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I will blackleg | you will blackleg | he/she/it will blackleg | we will blackleg | you will blackleg | they will blackleg |
Future Perfect |
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I will have blacklegged | you will have blacklegged | he/she/it will have blacklegged | we will have blacklegged | you will have blacklegged | they will have blacklegged |
Future Continuous |
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I will be blacklegging | you will be blacklegging | he/she/it will be blacklegging | we will be blacklegging | you will be blacklegging | they will be blacklegging |
Present Perfect Continuous |
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I have been blacklegging | you have been blacklegging | he/she/it has been blacklegging | we have been blacklegging | you have been blacklegging | they have been blacklegging |
Future Perfect Continuous |
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I will have been blacklegging | you will have been blacklegging | he/she/it will have been blacklegging | we will have been blacklegging | you will have been blacklegging | they will have been blacklegging |
Past Perfect Continuous |
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I had been blacklegging | you had been blacklegging | he/she/it had been blacklegging | we had been blacklegging | you had been blacklegging | they had been blacklegging |
Conditional |
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I would blackleg | you would blackleg | he/she/it would blackleg | we would blackleg | you would blackleg | they would blackleg |
Past Conditional |
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I would have blacklegged | you would have blacklegged | he/she/it would have blacklegged | we would have blacklegged | you would have blacklegged | they would have blacklegged | ThesaurusNoun | 1. | blackleg - someone who works (or provides workers) during a strikescab, strikebreaker, ratworker - a person who works at a specific occupation; "he is a good worker" | Verb | 1. | blackleg - take the place of work of someone on strikefink, scab, ratdo work, work - be employed; "Is your husband working again?"; "My wife never worked"; "Do you want to work after the age of 60?"; "She never did any work because she inherited a lot of money"; "She works as a waitress to put herself through college" | TranslationsblacklegenUK
blackleg or black quarter, acute infectious disease of cattle, less often of sheep, caused by an organism of the genus Clostridium. It is characterized by inflammation of muscles with swelling and pain in the affected areas. Toxins formed by the organism produce severe muscle damage, and mortality is high. Animals between the ages of six months and two years are most commonly affected. Treatment with large doses of antibiotics is only partially successful; in endemic areas, young animals can be vaccinated for prevention.Blackleg an acute infectious disease of cattle, characterized by crepitating edema, lameness, and quick death. Blackleg, which occurs in various geographical areas, is caused by the spore-forming anaerobic microbe Clostridium chauvoei. The microbe’s spores are preserved for many years in soil or water. In decomposing muscle tissue they live for as much as six months, while in the sun they die in 24 hours and in a corrosive sublimate solution (1:500) they die in ten minutes. Blackleg affects young cattle and occasionally sheep and goats. Susceptibility decreases with the animal’s age. The source of the disease-causing microbe is an animal infected with blackleg. Factors aiding transmission of the disease are infected feeds and objects used in caring for the animals. Infection enters the body through the digestive tract with food and water or through a break in the skin. The disease is usually observed during the pasturing period. Infected animals show a sudden rise in body temperature and become lame. Painful, hot, dense swellings appear on the animals’ croup and loins. Crackling (crepitation) is observed when pressure is applied to these swellings, which contain bubbles of gas. The animals show signs of depression. They salivate excessively and stop ruminating. Their breathing becomes more frequent, and their pulse weakens. The animal dies within ten to 60 hours. The corpse is usually very bloated. A foamy liquid runs from the nose and mouth, and a bloody liquid from the anus. Diagnosis is based on epizootic data, clinical symptoms, pathological anatomical changes, and bacteriological tests. Blackleg should be distinguished from anthrax and malignant edema by identifying the specific causative organism. Treatment, which is not always effective, involves the use of antibiotics. When the disease breaks out, the infected farm is quarantined. The affected animals are identified, isolated, and treated, as are those suspected of having the disease. The rest are vaccinated with a vaccine of concentrated aluminum hydroxide. The animal stalls are thoroughly disinfected, as are the places where sick or dead animals were kept. It is forbidden to use the meat or skins from infected animals. After the last case of the disease is cured or the animal dies the premises are disinfected thoroughly and the quarantine is lifted in 14 days. In farms where there were previous cases of blackleg, the cattle are vaccinated two weeks before they are sent out to pasture. REFERENCEKagan, F. I., and A. I. Kolesova. “Emfizematoznyi karbunkul.” In Diagnostika infektsionnykh i protozoinykh boleznei sel’skokhoziaistvennykh zhivotnykh. Moscow, 1968. (Album.)blackleg[′blak‚leg] (veterinary medicine) An acute, usually fatal bacterial disease of cattle, and occasionally of sheep, goats, and swine, caused by Clostridium chauvoei. blackleg an acute infectious disease of cattle, sheep, and pigs, characterized by gas-filled swellings, esp on the legs, caused by Clostridium bacteria blacklegenUK
blackleg (blăk′lĕg′)n. An infectious, usually fatal bacterial disease of cattle and sometimes of sheep, goats, and swine, caused by Clostridium chauvoei and characterized by gas-containing swellings in the musculature.Veterinary medicine An often lethal disease of young calves and sheep, characterised by a settling of gelatinous matter in the extremities and neck caused by Clostridium chauvoei, the spores of which can live in the soil for years and which are ingested and enter the blood via defects in the gastrointestinal mucosaLegalSeeScabblacklegenUK
blackleg a worker who reports for work normally whilst the majority of his or her colleagues are on STRIKE.blacklegenUK
Synonyms for blacklegnoun someone who works (or provides workers) during a strikeSynonymsRelated Wordsverb take the place of work of someone on strikeSynonymsRelated Words |