plant hormone
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plant hormone
n.
Any of various hormones produced by plants that control or regulate germination, growth, metabolism, or other physiological activities. Also called phytohormone.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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Noun | 1. | plant hormone - (botany) a plant product that acts like a hormone auxin - a plant hormone that promotes root formation and bud growth gibberellin - a plant hormone isolated from a fungus; used in promoting plant growth cytokinin, kinin - any of a class of plant hormones that promote cell division and delay the senescence of leaves plant product - a product made from plant material |
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