echiurid

echiurid
/ek'ee yoor"id/, n.
any of various unsegmented marine worms of the phylum Echiura, comprising the spoonworms.
[ < NL Echiurida, var. of Echiura < Gk échi(s) viper + -oura neut. pl. of -ouros -tailed (deriv. of ourá tail); Cf. Echiurus a genus of the phylum; see -IDA]

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Universalium. 2010.

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  • echiuroid — /ek ee yoor oyd/, n. 1. 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. adj. 2. belonging or pertaining to the Echiuroidea.… …   Universalium

  • spoonworm — /spoohn werrm /, n. any of various unsegmented, burrowing marine worms of the phylum Echiura, of shallow waters worldwide, having a sausage shaped body and a flattened head. [1835 45; SPOON + WORM] * * * ▪ invertebrate Introduction also called… …   Universalium

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