柯林斯詞典circadian /s???ke?d??n/ 1. ADJ of or relating to biological processes that occur regularly at about 24-hour intervals, even in the absence of periodicity in the environment 生物作用的; 通常以24小時(shí)為一周期→see also biological clock 返回 circadian劍橋詞典used to describe the processes in animals and plants that happen naturally during a 24-hour period (動(dòng)植物的)晝夜的,約一日的,約24小時(shí)的(節(jié)律,周期) Our circadian clock makes it difficult to sleep during the day . 晝夜生理時(shí)鐘讓我們很難在白天睡覺。 返回 circadian