contrabassoon(redirected from contrabassoons)
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The largest and lowest pitched of the double-reed wind instruments, sounding an octave below the bassoon. Also called double bassoon.
(Instruments) the largest instrument in the oboe family, pitched an octave below the bassoon; double bassoon
con•tra•bas•soon(ˈkɒn trə bæˈsun, -bə-)
a bassoon larger in size and an octave lower in pitch than the ordinary bassoon; a double bassoon.