diminution

英 [,dɪmɪ'njuːʃ(ə)n] 美['dɪmə'nʊʃən]

• n. 减少，降低；缩小

1. change toward something smaller or lower

2. the statement of a theme in notes of lesser duration (usually half the length of the original)

3. the act of decreasing or reducing something