archiannelida Meaning, Definition & Usage

  1. noun a class of Annelida
    class Archiannelida.

WordNet

Ar`chi*an*nel"i*da noun plural
Etymology
NL.; pref. archi- + annelida.
Definitions
  1. (Zoöl.) A group of Annelida remarkable for having no external segments or distinct ventral nerve ganglions.

Webster 1913