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echiurid

American  
[ek-ee-yoor-id] / ˌɛk iˈyʊər ɪd /

noun

  1. any of various unsegmented marine worms of the phylum Echiura, comprising the spoonworms.

Etymology

Origin of echiurid

< New Latin Echiurida, variant of Echiura < Greek échi ( s ) viper + -oura neuter plural of -ouros -tailed (derivative of ourá tail); Cf. Echiurus a genus of the phylum; -ida

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

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.