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bugle,brass wind musical instrument consisting of a conical tube coiled once upon itself, capable of producing five or six harmonics. It is usually in G or B flat. Its principal use is for military and naval bugle calls, such as taps and reveille, and, in earlier times, for hunting calls. In the early 19th cent., keyed bugles were made in order to obtain a complete scale.
1. A thinner or solvent; used to lower the viscosity of a paint, varnish, or lacquer.
2. A reducing pipe.
3. A reducing valve.
Music a brass instrument similar to the cornet but usually without valves: used for military fanfares, signal calls, etc.
2. any of several Eurasian plants of the genus Ajuga, esp A. reptans, having small blue or white flowers: family Lamiaceae (labiates)
a tubular glass or plastic bead sewn onto clothes for decoration