[医] 蝇

Musca \Mus"ca\, prop. n.; pl. {Musc[ae]}. [L., a fly.]
1. (Zo["o]l.) A genus of dipterous insects, including the
common house fly, and numerous allied species.

Note: Formerly, a large part of the Diptera were included
under the genus {Musca}.

2. (Astron.) A small constellation situated between the
Southern Cross and the Pole.

{Musc[ae] volitantes}. [L., flying flies.] (Med.) Specks or
filaments apparently seen moving or gliding about in the
field of vision. Their appearance is often a symptom of
disease of the eye, or of disorder of the nervous system.