echiuroid


echi·uroid

noun \ˌe-ki-ˈyr-ˌid\

Definition of ECHIUROID

:  any of a phylum (Echiura syn. Echiuroidea) of marine worms of uncertain taxonomic affinities that have a sensitive but nonretractile proboscis above the mouth

Origin of ECHIUROID

New Latin Echiuroidea or Echiura, ultimately from Greek echis viper + oura tail
First Known Use: circa 1889

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