noun
General term for instruments played by blowing air, such as flutes, clarinets, trumpets, and saxophones.
彼は吹奏楽器の中でも特にサックスが好きだ。
Among wind instruments, he especially likes the saxophone.
管楽器 is a more common synonym for wind instruments. 吹奏楽器 is slightly more formal or technical.
Compound of 吹奏 (すいそう, 'playing a wind instrument') + 楽器 (がっき, 'musical instrument').