res·in·oid noun \ˈre-zən-ˌȯid\
First Known Use of RESINOID
res·in·oid noun \ˈrez-ən-ˌȯid\ (Medical Dictionary)
: a thermosetting synthetic resin
a : any of a class of resinous preparations made by pouring a concentrated alcoholic extract of a drug into cold water and separating and drying the precipitate formed b : gum resin
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