(1):

(n.) Any plant of the scrrophulariaceous genus Antirrhinum, especially the cultivated A. majus, whose showy flowers are fancifully likened to the face of a dragon.

(2):

(n.) A West Indian herb (Ruellia tuberosa) with curiously shaped blue flowers.

(3):

(n.) A play in which raisins are snatched from a vessel containing burning brandy, and eaten; also, that which is so eaten. See Flapdragon.