Archiannelida
Pronunciation : Ar`chi*an*nel"i*da
Part of Speech : n. pl.
Etymology : [NL.; pref. archi- + annelida.] (Zo?l.)
Definition : Defn: A group of Annelida remarkable for having no external segments or distinct ventral nerve ganglions.
Source : Webster's Unabridged Dictionary, 1913