/ˈɔ:kɪstrə ||; ˈɔrkɪstrə/noun [C] a large group of musicians who play different musical instruments together, led by one person (a conductor) 管弦乐队；管弦乐团: a symphony orchestra 交响乐团 An orchestra usually plays classical music. Pop music, jazz, etc is played by a group or band. 管弦乐队通常演奏古典音乐。演奏流行音乐、爵士音乐等的乐队叫做group或band。 ➔orchestral /ɔ:ˈkestrəl ||; ɔrˈkɛstrəl/ adj