碳原子 tànyuánzǐ carbon atom Definitions Defs Origin Strokes Stroke Words Sentences Sents 碳 tàn noun carbon nonmetallic element (C); the essential component of organic matter, existing in nature as diamond, graphite, and coal原子 yuánzǐ noun atom atom; atomic; the smallest unit of a chemical element, consisting of a nucleus surrounded by electrons
