Search the dictionary A Chinese word or character, or English Draw a character Search 2 entries. āidíkǎlājì 埃迪卡拉纪 Ediacaran period (c. 635-542 million years ago), late phase of pre-Cambrian geological era āidíkǎlājì 埃迪卡拉紀 Ediacaran period (c. 635-542 million years ago), late phase of pre-Cambrian geological era