aplacophora

WORDNET DICTIONARY

aplacophora(n = noun.animal) order aplacophora, order solenogastres, solenogastres - an order of Amphineura;

is a kind of animal order

is a member of amphineura, subclass amphineura

aplacophora, n. pl. [NL., fr. Gr. 'a priv. + a flat cake + fe`rein to bear.].

A division of Amphineura in which the body is naked or covered with slender spines or setæ, but is without shelly plates. [1913 Webster]