Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to cercaria: Schistosoma, schistosomiasis, Metacercariae, rediae


n. pl. cer·car·i·ae (-ē-ē′) or cer·car·i·as
A larva of a trematode, which develops from a sporocyst or a redia.

[New Latin cercāria : Greek kerkos, tail + -āria, feminine of Latin -ārius, -ary.]

cer·car′i·al adj.


n, pl -iae (-ɪˌiː)
(Zoology) one of the larval forms of trematode worms. It has a short forked tail and resembles an immature adult
[C19: New Latin, literally: tailed creature, from Greek kerkos tail]
cerˈcarial adj
cerˈcarian adj, n


(sərˈkɛər i ə)

n., pl. -car•i•ae (-ˈkɛər iˌi)
the free-swimming, tailed larva of parasitic trematodes.
[1830–40; < New Latin < Greek kérkos tail]
cer•car′i•al, adj.
cer•car′i•an, adj., n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cercaria - tadpole-shaped parasitic larva of a trematode wormcercaria - tadpole-shaped parasitic larva of a trematode worm; tail disappears in adult stage
class Trematoda, Trematoda - parasitic flatworms (including flukes)
larva - the immature free-living form of most invertebrates and amphibians and fish which at hatching from the egg is fundamentally unlike its parent and must metamorphose
References in periodicals archive ?
At 2 sites, unidentifiable cercaria larvae were revealed through dissection (5 of 70 Bulinus snails in the Rizzanese, 26 of 50 in the Baraci).
We cracked the shells of each live red-rim melania snail between the first and second body whorl, removed the digestive tract, and examined each for rediae and cercaria of trematodes with a dissecting microscope at 100x total magnification.
They are unique among digeneans by having a furcocystocercous cercaria that is macroscopic, progenetic, and actively swims, mimicking a fish prey item.
Seasonal changes of Perkinsus and Cercaria infections in the Manila clam Ruditapes philippinarum from Jeju, Korea.
1942 Caecincola Micropterus Intestine Venard, 1940 parvulus salmoides Cathaemasia Ceryle alcyon Intestine Harwood, reticulata 1936 Cercaria corti Helisoma Digestive Gland Byrd & trivolvis Reiber, 1940 C.
Say) is an intermediate host for this trematode, although two other snails, Triodopsis albolabris (Say) and Haplotrema concavum (Say), may serve as secondary intermediate hosts to the microcercous cercaria as well as A.
Once in subcutaneous tissues, the cercaria loses its tail to become a schistosomule and penetrates peripheral vessels allowing migration to the heart and then the lungs.
The cercaria is a free-swimming larval stage that may become caught in the respiratory current of a fish, the second intermediate host to the parasite.
After a period of asexual reproduction, tailed, free-swimming larvae called cercaria leave the snail and are transported in water, where they actively seek an appropriate vertebrate host.
1984) described the cercaria of a sibling species of A.