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单词 abscisic acid
释义 abscisic acid
 /ab sis"ik, -siz"-/, Biochem.
 a growth-regulating plant hormone, C15H20O4, that promotes dormancy and the aging and abscission of leaves.
 [ABSCIS(SION) + -IC, on the model of the earlier name abscisin (see -IN2), coined in 1961]
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