Lexic.us

Definition of Echiuroidea

1. n. pl. A division of Annelida which includes the genus Echiurus and allies. They are often classed among the Gephyrea, and called the armed Gephyreans.

Medical Definition of Echiuroidea

1. A division of Annelida which includes the genus Echiurus and allies. They are often classed among the Gephyrea, and called the armed Gephyreans. Origin: NL, fr. Echiurus, the name of one genus (Gr. An adder + tail). Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Echiuroidea

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