noun, plural cercariae [ser-kair-ee-ee] . Zoology.
the disk-shaped larva of flukes of the class Trematoda, having a taillike appendage.

1830–40; < Neo-Latin, equivalent to cerc- (< Greek kérkos tail) + -āria -aria

cercarial, adjective
cercarian, adjective, noun
pseudocercaria, noun, plural pseudocercariae.
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World English Dictionary
cercaria (səˈkɛərɪə)
n , pl -iae
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]
adj, —n

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American Heritage
Medical Dictionary

cercaria cer·car·i·a (sər-kâr'ē-ə)
n. pl. cer·car·i·as or cer·car·i·ae (-ē-ē')
The parasitic larva of a trematode worm, having a tail that disappears in the adult stage.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Cercaria leave the redia while immature, and emerge from the snail after about four days.
When a cercaria penetrates and migrates into the tissues of a fish, it causes obvious mechanical damage and hemorrhaging.
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