有机氮 yǒujīdàn organic nitrogen Definitions Defs Origin Strokes Stroke Words Sentences Sents 有机 有機 yǒujī adjective organic Relating to carbon-based compounds, biological organisms, or food produced without the use of chemical fertilizers or pesticides氮 dàn noun nitrogen the nonmetallic chemical element with symbol N; a colorless, odorless gas that makes up about four-fifths of the earth's atmosphere
