mass noun
1
- simultaneous performance or utterance of action or speech一致; 和谐; 协调：
'Yes, sir, ' said the girls in unison.
“是的, 先生,"女孩们异口同声说道。
2
- Music coincidence in pitch of sounds or notes【乐】同度; 同音; 齐唱; 齐奏：
the flutes play in unison with the violas.
长笛与中提琴合奏。
2.1
- count noun a combination of notes, voices, or instruments at the same pitch or (especially when singing) in octaves同度; 同音; 齐唱; 齐奏：
good unisons are formed by flutes, oboes, and clarinets.
长笛、双簧管和单簧管构成美妙的合奏。
派生词
unisonous
adjective词源
late Middle English (in sense 2)： from Old French, or from late Latin unisonus, from Latin uni- 'one'+ sonus 'sound'.