( n. pl. )
An extensive division of gastropod mollusks in which the odontophore is long and narrow, and usually bears seven rows of teeth. It includes a large number of families both marine and fresh-water.
( n. pl. )
An extensive division of gastropod mollusks in which the odontophore is long and narrow, and usually bears seven rows of teeth. It includes a large number of families both marine and fresh-water.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012