auxin
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English[edit]
Etymology[edit]
From Ancient Greek αὐξάνειν (auxánein, “to grow”).
Pronunciation[edit]
Noun[edit]
auxin (countable and uncountable, plural auxins)
- (botany, biochemistry) A class of plant growth substance (often called phytohormones or plant hormones) which play an essential role in coordination of many growth and behavioral processes in the plant life cycle.