名詞 cercaria:

1. tadpole-shaped parasitic larva of a trematode worm; tail disappears in adult stage

cer.car.i.a

n.（名詞）
【復(fù)數(shù)】 cer.car.i.ae[-ô-ô.] 或 cer.car.i.as
The parasitic larva of a trematode worm, having a tail that disappears in the adult stage.
尾動幼蟲，搖尾幼蟲：吸蟲綱蟲的寄生幼蟲，其尾在成蟲階段消失

來源：
New Latin
現(xiàn)代拉丁語
Greek kerkos [tail]
希臘語 kerkos [尾]
-aria
-aria
feminine of Latin -arius [-ary]
拉丁語 -arius的陰性詞 [后綴，表.…的.]

【引伸】
cercar.ial
adj.（形容詞）