abscisic acid

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ab·scis·ic acid

 (ăb-sĭz′ĭk)
n.
A plant hormone, C15H20O4, that regulates the abscission of leaves, flowers, and fruits, the dormancy of buds and seeds, and other developmental processes and stress responses.
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.

abscisic acid

(æbˈsɪsɪk)
n
a type of acid that causes abscission
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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References in periodicals archive ?
Basal application of fertilizer solutions using abscissic acid and Miyobi Gold, a commercial fertilizer in Japan containing natural type of ABA and potassium, were done to promote and increase flower formation during off-season.
Abscissic acid is involved in fruit drop, or abscission.
Those genes included Eral (short for enhanced response to abscissic acid, a plant hormone); Pan (for perianthia, a botanical term); and Clv1, Clv2, and Clv3 (short for clavata, the clublike structure that these experimental plants form to enclose their seeds).