Definition of toringin
: a crystalline flavone glucoside C21H20O9 that occurs in the bark of a shrubby Japanese crab apple (Malus sieboldii) and in the buds of several poplars and that yields chrysin and glucose on hydrolysis
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Origin and Etymology of toringin
New Latin toringo (specific epithet of Pyrus toringo, synonym of Malus sieboldii) (from Japanese, a crab apple tree) + English -in
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