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abscisic acid

[ab-sis-ik, -siz-] /æbˈsɪs ɪk, -ˈsɪz-/
noun, Biochemistry.
a growth-regulating plant hormone, C 15 H 20 O 4 , that promotes dormancy and the aging and abscission of leaves.
Origin of abscisic acid
abscis(sion) + -ic, on the model of the earlier name abscisin (see -in2), coined in 1961 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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abscisic-acid in Science
abscisic acid
A plant hormone that maintains the water balance of plants, prevents seed embryos from germinating, and induces the dormancy of buds and seeds. Chemical formula: C15H20O4.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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