[ ab-sis-ik, -siz- ]
/ æbˈsɪs ɪk, -ˈsɪz- /
a growth-regulating plant hormone, C15H20O4, that promotes dormancy and the aging and abscission of leaves.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Science definitions for abscisic acid
[ ăb-sĭz′ĭk ]
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.
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