plant hormone
noun
: 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
Examples of plant hormone in a Sentence
Recent Examples on the Web
Then cells are transferred into a gel containing two plant hormones, auxin and cytokinin, allowing researchers to coax the cells to grow into wood-like structures.
—
John Werner, Forbes, 8 Dec. 2024
Health What plants can teach us about human suffering
Plants are very sensitive to touch, with research showing that touching a plant can change its genome and launch a cascade of plant hormones.
—Big Think, 24 June 2024
Coconut contains a type of anti-inflammatory plant hormone called cytokinins.
—Nick Blackmer, Verywell Health, 12 Apr. 2024
Other sustainable, lighter shipping cartons are being designed to remove ethylene, a plant hormone that encourages ripening.
Containers from plants.
—Kim Severson, New York Times, 2 Apr. 2024
See all Example Sentences for plant hormone 
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John Werner, Forbes, 8 Dec. 2024
Health What plants can teach us about human suffering
Plants are very sensitive to touch, with research showing that touching a plant can change its genome and launch a cascade of plant hormones.
—Big Think, 24 June 2024
Coconut contains a type of anti-inflammatory plant hormone called cytokinins.
—Nick Blackmer, Verywell Health, 12 Apr. 2024
Other sustainable, lighter shipping cartons are being designed to remove ethylene, a plant hormone that encourages ripening.
Containers from plants.
—Kim Severson, New York Times, 2 Apr. 2024
See all Example Sentences for plant hormone
Dictionary Entries Near plant hormone
Cite this Entry
“Plant hormone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plant%20hormone. Accessed 11 Feb. 2025.
Copy CitationMedical Definition
plant hormone
noun
: 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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