a woodwind instrument of the family that includes the bassoon and cor anglais, consisting of a conical tube fitted with a mouthpiece having a double reed. It has a penetrating nasal tone. Range: about two octaves plus a sixth upwards from B flat below middle C
2.
a person who plays this instrument in an orchestra: second oboe
[C18: via Italian oboe, phonetic approximation to French haut bois, literally: high wood (referring to its pitch)]