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单词 blackleg
释义

blackleg

enUK

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 strike

black•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
blackleg
blackleg
Present
I blackleg
you blackleg
he/she/it blacklegs
we blackleg
you blackleg
they blackleg
Preterite
I blacklegged
you blacklegged
he/she/it blacklegged
we blacklegged
you blacklegged
they blacklegged
Present Continuous
I am blacklegging
you are blacklegging
he/she/it is blacklegging
we are blacklegging
you are blacklegging
they are blacklegging
Present Perfect
I have blacklegged
you have blacklegged
he/she/it has blacklegged
we have blacklegged
you have blacklegged
they have blacklegged
Past Continuous
I was blacklegging
you were blacklegging
he/she/it was blacklegging
we were blacklegging
you were blacklegging
they were blacklegging
Past Perfect
I had blacklegged
you had blacklegged
he/she/it had blacklegged
we had blacklegged
you had blacklegged
they had blacklegged
Future
I will blackleg
you will blackleg
he/she/it will blackleg
we will blackleg
you will blackleg
they will blackleg
Future Perfect
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
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
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
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
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
I would blackleg
you would blackleg
he/she/it would blackleg
we would blackleg
you would blackleg
they would blackleg
Past Conditional
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
Thesaurus
Noun1.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"
Verb1.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"
Translations
crumiro

blackleg

enUK

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.

REFERENCE

Kagan, 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

blackleg

enUK

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 mucosa
LegalSeeScab

blackleg

enUK

blackleg

a worker who reports for work normally whilst the majority of his or her colleagues are on STRIKE.

blackleg

enUK
  • all
  • noun
  • verb

Synonyms for blackleg

noun someone who works (or provides workers) during a strike

Synonyms

  • scab
  • strikebreaker
  • rat

Related Words

  • worker

verb take the place of work of someone on strike

Synonyms

  • fink
  • scab
  • rat

Related Words

  • do work
  • work
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更新时间:2024/12/22 21:03:04