echiuroid

American

[ek-ee-yoor-oid] / ˌɛk iˈyʊər ɔɪd /

noun

any wormlike invertebrate of the phylum Echiuroidea, found in sand and mud of tropical and subtropical seas, having at the mouth a ciliated, often elongated prostomium.

adjective

belonging or pertaining to the Echiuroidea.

Etymology

Origin of echiuroid

1885–90; < New Latin Echiuroidea; echiurid, -oidea

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The female has the normal Echiuroid structure, but the male is reduced to a minute, flattened, planarian-like organism, which passes its life usually in the company of two or three others in a special recess of the nephridia of the female.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023