'Holostomata' definitions:

Definition of 'Holostomata'

From: GCIDE

Holostomata \Hol`o*stom"a*ta\, n. pl. [NL., fr. Gr. "o`los whole + sto`ma, -atos, mouth.] (Zool.) An artificial division of gastropods, including those that have an entire aperture. [1913 Webster]