Aplacophora
Pronunciation : Ap`la*coph"o*ra
Part of Speech : n. pl.
Etymology : [NL., fr. Gr. (Zo?l.)
Definition : Defn: A division of Amphineura in which the body is naked or covered with slender spines or set?, but is without shelly plates.
Source : Webster's Unabridged Dictionary, 1913