cercaria

/ser-kair-ee-uh/US // sərˈkɛər i ə //UK // (səˈkɛərɪə) //

尾蚴,钩虫,尾蚴病,钩虫病

Definitions

n.名词 noun

1
plural cer·car·i·ae [ser-kair-ee-ee]. /sərˈkɛər iˌi/. Zoology.
- : the disk-shaped larva of flukes of the class Trematoda, having a taillike appendage.

By drinking the water which contains the cercaria of this species, they grow infested by this singular lodger.
Claparde has also observed another free cercaria which bears the name of Pachycerca.
The Cercaria setifera of J. Mller has been found free and attached to the lower surface of some medus.
It is always of a deep colour, and is doubtless introduced in the state of cercaria, when the animal is drinking.
There are some grounds for comparing the scolex to the Cercaria of Trematodes, cf. Archigetes.