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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 ?
Effects of the herbicide atrazine's metabolites on host snail mortality and production of nematode cercariae.
Cercariae (Digenea: Strigeidae, Diplostomidae) in Biomphalaria straminea (Planorbidae) from a rice field in Northeastern Argentina
It is transmitted by contact with contaminated fresh water, where cercariae penetrate the skin.
For example, we could not necessarily distinguish among rashes as being associated with cnidarians, sea lice, cercariae, salt water itself, or even something completely unrelated to the beach visit.
In the definitive host, the cercariae mature to adults and lay eggs that are discharged with the host feces into the environment and surrounding bodies of water.
Rediae then release free-swimming cercariae from the snail that encyst as metacercariae on aquatic vegetation, and if ingested by a cervid, will excyst and penetrate the intestine as juvenile flukes.
These include antibiotic, antitrypanosomal, hypotensive, antispasmodic, antiulcer, anti-inflammatory, hypocholesterolemic, and hypoglycemic activities, as well as having considerable efficacy in water purification by flocculation, sedimentation, antibiosis, and even reduction of schistosoma cercariae titer.
The digestive gland was destructed while daughter sporocycts which contain many developing cercariae were noticed.
Birds likely to continue to live in a high-risk exhibit known to have snails carrying intrasnail stages (rediae, cercariae, metacercariae, and immature flukes) may not be treated.