晝夜節律 Save Sign in to save words Simplified: 昼夜节律 zhòuyèjiélǜ ㄓㄡˋ ㄧㄝˋ ㄐㄧㄝˊ ㄌㄩˋ circadian rhythm Character by character 晝(zhòu)daytime 夜(yè)night 節(jié)joint 律(lǜ)surname Lü A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0