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Definition of: trombone
(trom′bōn, trom·bōn′) noun
A powerful brass wind instrument of the trumpet family possessing a complete chromatic scale. It consists of a cupped mouthpiece and a long tube bent twice upon itself, the outer bend being a U–shaped slide, by the motion of which the length of the vibrating air column may be so adjusted as to produce any note within its compass. [<Ital., aug. of tromba a trumpet]
—trom′bon·ist noun
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