Bea″gle (�), n. [OE. begele; perh. of Celtic origin; cf. Ir. & Gael. beag small, little, W. bach. F. bigle is from English.] 1. A small hound, or hunting dog, twelve to fifteen inches high, used in hunting hares and other small game. See Illustration in Appendix.
2. Fig.: A spy or detective; a constable.