震旦紀 Save Sign in to save words Simplified: 震旦纪 zhèndànjì ㄓㄣˋ ㄉㄢˋ ㄐㄧˋ Sinian (c. 800-542 million years ago), late phase of pre-Cambrian geological era Character by character 震(zhèn)shake 旦(dàn)dawn 紀(jì)order A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0