Monomya
Pronunciation : Mo*no"my*a, Mon`o*my*a"ri*a
Part of Speech : n.pl.
Etymology : [NL., fr. Gr. (Zo?l.)
Definition : Defn: An order of lamellibranchs having but one muscle for closing the shell, as the oyster.
Source : Webster's Unabridged Dictionary, 1913