trochophore(redirected from trachosphere)
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The small, free-swimming, ciliated aquatic larva of various invertebrates, including certain mollusks and annelids.
[Greek trokhos, wheel (from trekhein, to run) + -phore.]
(Zoology) the ciliated planktonic larva of many invertebrates, including polychaete worms, molluscs, and rotifers
[C19: from Greek trokhos wheel + -phore]
troch•o•phore(ˈtrɒk əˌfɔr, -ˌfoʊr)
a ciliate, free-swimming larva common to several groups of invertebrates, as many mollusks and rotifers.
[1890–95; < Greek trochó(s) wheel + -phore]