1. A name given to the Snapdragon (see quot.).
1851. S. Thomson, Wild Fl., III. (ed. 4), 252. The great snapdragon or frogs-mouth (Antirrhinum majus) is found generally in suspicious neighbourhood to some garden.
2. A bird of the family Podargidæ.
1888. Riverside Nat. Hist., IV. Birds, 387. The frog-mouths (Batrachostomus) are confined to southern India [etc.].