Monomya

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Monomya \Mo*no"my*a\, Monomyaria \Mon`o*my*a"ri*a\, n. pl. [NL.,
     fr. Gr. mo`nos single + ?, ?, muscle.] (Zool.)
     An order of lamellibranchs having but one muscle for closing
     the shell, as the oyster.
     [1913 Webster] Monomyarian