trochophore

American  

[trok-uh-fawr, -fohr] / ˈtrɒk əˌfɔr, -ˌfoʊr /

noun

Zoology.

1. a ciliate, free-swimming larva common to several groups of invertebrates, as many mollusks and rotifers.

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trochophore British  

/ ˈtrɒkəsˌfɪə, ˈtrɒkəˌfɔː /

noun

1. the ciliated planktonic larva of many invertebrates, including polychaete worms, molluscs, and rotifers

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Etymology

Origin of trochophore

1890–95; < Greek trochó ( s ) wheel + -phore

Example Sentences

Early development in some species occurs via two larval stages: trochophore and veliger.

From Textbooks • Jan. 1, 2015

Some lophotrochozoan phyla are characterized by a larval stage called trochophore larvae, and other phyla are characterized by the presence of a feeding structure called a lophophore.

From Textbooks • Jan. 1, 2015

Reproduction in cephalopods is different from other mollusks in that the egg hatches to produce a juvenile adult without undergoing the trochophore and veliger larval stages.

From Textbooks • Jan. 1, 2015

As lophotrochozoans, the organisms in this superphylum possess either a lophophore or trochophore larvae.

From Textbooks • Jan. 1, 2015

It is an ancestral larval form, corresponding perhaps to the stages immediately succeeding the trochophore in the development of Annelids, but with some of the later-acquired Crustacean characters superposed upon it.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various