Blow"fly` (&?;), n. (Zoöl.) Any species of fly of the genus Musca that deposits its eggs or young larvæ (called flyblows and maggots) upon meat or other animal products.
Blow"gun` (&?;), n. A tube, as of cane or reed, sometimes twelve feet long, through which an arrow or other projectile may be impelled by the force of the breath. It is a weapon much used by certain Indians of America and the West Indies; -- called also blowpipe, and blowtube. See Sumpitan.
Blow"hole` (&?;), n. 1. A cavern in a cliff, at the water level, opening to the air at its farther extremity, so that the waters rush in with each surge and rise in a lofty jet from the extremity.