tuba
noun pl. tubas or tubae
- in ancient Rome, a straight war trumpet
- any of a group of brass instruments with a conical bore and three to five valves, esp. the large contrabass member
See tuba in American Heritage Dictionary 4
(to͞oˈbə, tyo͞oˈ-)
noun- A large, valved, brass wind instrument with a bass pitch.
- A reed stop in an organ, having eight-foot pitch.
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