‖n. pl. [ NL., fr. Gr. &unr_; bond + &unr_; muscle. ] (Zool.) The division of Tunicata which includes the Salpæ. See Salpa. [ 1913 Webster ]

‖/mhw>, n. pl. [ NL., fr. Gr. &unr_; = &unr_; + &unr_; to close. ] (Zool.) An order of lamellibranchiate mollusks having an anterior and posterior adductor muscle, as the common clam. See Bivalve. [ 1913 Webster ]

a. (Zool.) Like or pertaining to the Dimya. -- n. One of the Dimya. [ 1913 Webster ]

‖n. pl. [ NL., fr. Gr. &unr_; other + &unr_; a muscle. ] (Zool.) A division of bivalve shells, including the marine mussels, in which the two adductor muscles are very unequal. See Dreissena, and Illust. under Byssus. [ 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 ]

{ } a. (Zool.) Of or pertaining to the Monomya. -- n. One of the Monomya. [ 1913 Webster ]

‖n. pl. [ NL. ] (Zool.) A division of bivalve mollusks of which the common clam (Mya) is the type. [ 1913 Webster ]

n. [ Pref. tri + Gr. &unr_;, &unr_;, a muscle. ] (Zool.) A lamellibranch which has three muscular scars on each valve. [ 1913 Webster ]