Definition of


  1. (noun, substance) a plant hormone that promotes root formation and bud growth

via WordNet, Princeton University

Alternate forms of Auxin

Derivations: auxinic

Hyponyms: iaa, indoleacetic acid, indolebutyric acid

Hypernyms: growth regulator, phytohormone, plant hormone

Origin of the word Auxin

  1. plant growth hormone, 1934, from Ger. (1931), from Gk. auxein "to increase" (see augment) + chemical suffix. more

via Online Etymology Dictionary, ©2001 Douglas Harper

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