auxin

noun aux·in \ ˈȯk-sən \

Definition of auxin

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
b : any of various synthetic substances (such as 2,4-D) resembling indoleacetic acid in activity and used especially in research and agriculture

auxinic

play \ȯk-ˈsi-nik\ adjective

Origin and Etymology of auxin

International Scientific Vocabulary, from Greek auxein to increase — more at eke


Medical Dictionary

auxin

noun aux·in \ ˈȯk-sən \

medical Definition of auxin

: an organic substance that is able in low concentrations to promote elongation of plant shoots and usually to control other specific growth effects; broadly : plant hormone

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