{ ‖‖ } n. pl. [ NL., fr. Gr. mo`nos single + &unr_;, &unr_;, muscle. ] (Zool.) An order of lamellibranchs having but one muscle for closing the shell, as the oyster. [ 1913 Webster ]
{ ‖‖ } n. pl. [ NL., fr. Gr. mo`nos single + &unr_;, &unr_;, muscle. ] (Zool.) An order of lamellibranchs having but one muscle for closing the shell, as the oyster. [ 1913 Webster ]