古植物学 gǔzhíwùxué paleobotany Origin Definitions Defs Strokes Stroke Words Sentences Sents 古 gǔ adjective ancient ancient; old; from the distant past; referring to former times as opposed to the present植物学 植物學 zhíwùxué botany The branch of biology that deals with the study of plants, including their structure, growth, and classification.