/klef ||; klɛf/noun [C] (in music) a sign (,) at the beginning of a line of written music that shows the area of sound that the notes are in （音乐）谱号（写在谱表开端以表示音符音高的符号，即或）: the bass/treble clef 低音╱高音谱号 ☞picture at music 见music插图