AUXIN
Meaning of AUXIN in English
/ ˈɔːksɪn; NAmE / noun
[ U ] a hormone found in plants
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WORD ORIGIN
1930s: coined in German from Greek auxein to increase + -in .
Oxford Advanced Learner's English Dictionary.
Оксфордский английский словарь для изучающик язык на продвинутом уровне.
2005