单词 | auxin |
释义 | auxinnoun aux·in ˈȯk-sən 1 : any of various usually acidic organic substances that promote cell elongation in plant shoots and usually regulate other growth processes (such as root initiation): such as a : indoleacetic acid b : any of various synthetic substances (such as 2,4-D) resembling indoleacetic acid in activity and used especially in research and agriculture 2 : plant hormone auxinic ȯk-ˈsi-nik adjective |
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