apical dominance


noun Botany.

suppression of the development of lateral buds in a growing plant shoot, caused by hormones produced in the tip of the shoot.

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Origin of apical dominance

First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Scientific definitions for apical dominance

apical dominance
[ āpĭ-kəl, ăpĭ- ]

Inhibition of the growth of lateral buds by the terminal bud of a plant shoot. In most plants, apical dominance results from the release of auxin by the apical meristem.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.