GAPE

n. Gap. 1. In ornithology, opening of the mouth: the area of the opened mouth. 2. In the pi, j/'s, a disease of young graminivorous birds attended with much gaping, caused in fowls by the Sclerostoma syngamus and in grouse by the Strongyl us per gracilis tracheulis. [B; L, 56, 843.] G.-worm. The Sclerostoma tymjamus or the Strongyl us per gracilis. [B.] [s. 146]