Bu"gle (&?;), n. [OE. bugle buffalo, buffalo's horn, OF. bugle, fr. L. buculus a young bullock, steer, dim. of bos ox. See Cow the animal.] A sort of wild ox; a buffalo. E. Phillips.

Bu"gle, n. [See Bugle a wild ox.] 1. A horn used by hunters.

2. (Mus.) A copper instrument of the horn quality of tone, shorter and more conical that the trumpet, sometimes keyed; formerly much used in military bands, very rarely in the orchestra; now superseded by the cornet; -- called also the Kent bugle.

Bu"gle, n. [LL. bugulus a woman's ornament: cf. G. bügel a bent piece of metal or wood, fr. the same root as G. biegen to bend, E. bow to bend.] An elongated glass bead, of various colors, though commonly black.

Bu"gle, a. [From Bugle a bead.] Jet black. "Bugle eyeballs." Shak.

Bu"gle, n. [F. bugle; cf. It. bugola, L. bugillo.] (Bot.) A plant of the genus Ajuga of the Mint family, a native of the Old World.

• (music) a simple brass instrument consisting of a horn with no valves, playing only pitches in its harmonic series
  
• An often cultivated plant, lamiaceae
  
• anything shaped like a bugle, round or conical and having a bell on one end
  
• to announce, sing, or cry in the manner of a bugle (1); to trumpet