liver fluke

n. Any of several parasitic trematode worms that infest the liver of humans and other mammals, especially Clonorchis sinensis and several species in the genus Opisthorchis, acquired from eating infected freshwater fish, and two species in the genus Fasciola, acquired from ingesting contaminated water or aquatic vegetation.

liver fluke

n (Animals) any of various parasitic flatworms, esp Fasciola hepatica, that inhabit the bile ducts of sheep, cattle, etc, and have a complex life cycle: class Digenea. See also trematode

liv′er fluke`

(ˈlɪv ər)
n. any of various trematodes, as Fasciola hepatica, parasitic in the liver and bile ducts of mammels. [1785–95]

Thesaurus

Noun

liver fluke - flatworm parasitic in liver and bile ducts of domestic animals and humansFasciola hepaticatrematode, trematode worm, fluke - parasitic flatworms having external suckers for attaching to a hostFasciola, genus Fasciola - a genus of Fasciolidae

Translations

liver fluke

liver fluke:

see flukefluke,
parasitic flatworm of the trematoda class, related to the tapeworm. Instead of the cilia, external sense organs, and epidermis of the free-living flatworms, adult flukes have sucking disks with which they cling to their hosts and an external cuticle that resists digestion
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Liver Fluke

(Fasciola hepatica), a parasitic worm of the class Trematoda. The leaf-shaped body has a length of 2–5 cm. At the anterior end are the oral and ventral suckers. The liver fluke infests the liver, bile ducts, and gallbladder usually of herbivorous mammals, and more rarely of humans. The ova develop in water; the larvae that hatch from these ova and the partheno-genetic generations develop in an intermediate host, which is usually a mollusk, for example, the small freshwater snails of the family Lymnaeidae. The larva—a cercaria—emerges from the mollusk, swims, and settles on aquatic and coastal plants, becoming encysted as it converts to an adolescaria. The larvae that are swallowed by the definitive host penetrate the liver, where they grow and mature, eventually causing the disease fascioliasis.

Liver flukes are controlled by draining swamps, where lym-naeids hatch, by exterminating lymnaeids, by rotating pastures, and by treating cattle with anthelmintic drugs.

REFERENCE

Shul’ts, R. S., and G. I. Dikov. Gel’minty i gel’mintozy sel’skokhoziaist-vennykh zhivotnykh. Alma-Ata, 1964.

I. E. BYKHOVSKAIA

liver fluke

[′liv·ər ‚flük] (invertebrate zoology) Any trematode, especially Clonorchis sinensis, that lodges in the biliary passages within the liver.

liver fluke

One of several types of flatworm (trematode) which can gain access to the liver by way of the bile duct and cause a feverish illness with liver tenderness and enlargement. The common form of liver fluke, Fasciola hepatica , is a parasite of sheep which produces eggs that are passed in the sheep faeces. The intermediate host is an aquatic snail from which further larvae are released to congregate on the leaves of water plants such as cress or water-chestnut. If these are eaten by humans, the infestation may be acquired. Diagnosis is by microscopic identification of the fluke eggs in the stools. ANTHELMINTIC drugs are used to kill the worms.

liver fluke

see FLUKE.

liver fluke

liver fluke

liver fluke

liv′er fluke`

liver fluke

liver fluke:

Liver Fluke

REFERENCE

liver fluke

liver fluke

liver fluke

liver fluke

liver fluke

liver fluke

Synonyms for liver fluke

noun flatworm parasitic in liver and bile ducts of domestic animals and humans

Synonyms

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