Trombone

Webster's Practical Dictionary- A Practical Dictionary of the Englih Language · 1884 · p. 477

trom'bon {It. pron. trombo'na), n. (Mm.) A deep-toned bra instrument of the trumpet kind, consisting of 3 tubes, the 1st and 3d being side by side, the middle tube being doubled and sliding into the others like a telescope.— Tromp, n. A blowing apparatus, used in furnaces.