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abscisic acid

[ab-sis-ik, -siz-]
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noun Biochemistry.
  1. a growth-regulating plant hormone, C15H20O4, 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
abscisic acid in Science

abscisic acid

[ăb-sĭzĭk]
  1. 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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