auxin
English edit
Etymology edit
From Ancient Greek αὐξάνειν (auxánein, “to grow”).
Pronunciation edit
Audio (US) (file)
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.