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abscisic acid
[ ab-sis-ik, -siz- ]
noun
, Biochemistry.
- a growth-regulating plant hormone, C 15 H 20 O 4 , that promotes dormancy and the aging and abscission of leaves.
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: C 15 H 20 O 4 .
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Word History and Origins
Origin of abscisic acid1
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