古生代 gǔshēngdài Paleozoic Era Definitions Defs Origin Strokes Stroke Words Sentences Sents 古 gǔ adjective ancient ancient; old; from the distant past; referring to former times as opposed to the present生 shēng noun life life; lifetime; existence代 dài era (geological) (geology) a unit of geological time that is a subdivision of an eon and is further divided into periods
