contrabassoon
noun
- a bassoon that is larger and longer than the normal type and sounds an octave lower in pitch
Wiktionary
noun
Etymology: Semi-anglicized version of Italian contrafagotto, probably following the model of the English word contrabass (which derives from Italian contrabbasso).
- A larger version of the bassoon sounding one octave lower, having a technique similar to the bassoon but offers more resistance in every way.