plant hormone

noun
Updated on: 1 Mar 2018

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

Recent Examples of plant hormone from the Web

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First Known Use of plant hormone

1932

in the meaning defined above

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Medical Dictionary

plant hormone

noun \ ˈplant- \

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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