abscisic acid
[ ab-sis-ik, -siz- ]
/ æbˈsɪs ɪk, -ˈsɪz- /
noun Biochemistry.
a growth-regulating plant hormone, C15H20O4, that promotes dormancy and the aging and abscission of leaves.
Origin of abscisic acid
Words nearby abscisic acid
absaroka range,
abscam,
abscess,
abscind,
abscise,
abscisic acid,
abscissa,
abscission,
abscission layer,
abscission zone,
abscond
Scientific definitions for abscisic acid
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.