plant hormone


plant hormone

noun

Definition of PLANT HORMONE

:  an organic substance other than a nutrient that in minute amounts modifies a plant physiological process; especially :  one produced by a plant and active elsewhere than at the site of production

First Known Use of PLANT HORMONE

1932

plant hormone

noun \ˈplant-\   (Medical Dictionary)

Medical Definition of PLANT HORMONE

: an organic substance other than a nutrient that in minute amounts modifies a plant physiological process; especially : one produced by a plant and active elsewhere than at the site of production—called also phytohormone

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