生物鐘 [－－钟]

Jyutping sang1 mat6 zung1
Pinyin shēng wù zhōng

Definitions (CC-CEDICT)
  1. biological clock
Definitions (Wiktionary)
  1. noun
    biological clock
Definitions (兩岸三地生活差異詞語彙編—Two Shores Three Places)
  1. 健康：臺
    生理時鐘
  2. 健康：陸
    生物鐘