nounpl. tu′bas or tu′bae
- 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
Origin of tubaL, a trumpet
- A large, valved, brass instrument with a bass pitch.
- A reed stop in an organ, having eight-foot pitch.
Origin of tubaItalian from Latin trumpet tubus tube
- tu′ba·ist tu′bist
From Latin tuba (“tube, trumpet").