nounWord forms: plural ˈtubas or ˈtubae (ˈtubi
; to̅oˈbē; ˈtjubi
any of a group of brass instruments with a conical bore and three to five valves
, esp. the large contrabass
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'tuba'L, a trumpet