[ ek-ee-yoo r-oid ]
/ ˌɛk iˈyʊər ɔɪd /
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.
belonging or pertaining to the Echiuroidea.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019