衰減 [－减]

Jyutping seoi1 gaam2
Pinyin shuāi jiǎn

Definitions (CC-CEDICT)
  1. to weaken
  2. to attenuate
Definitions (Wiktionary)
  1. verb
    to attenuate
Definitions (HSK3.0)
  1. HSK3 七一九级词汇表 #3836