growth regulator

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Related to Regulator, Growth: Plant growth regulator
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Noun1.growth regulator - (botany) a plant product that acts like a hormone
phytology, botany - the branch of biology that studies plants
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