Definition of alfin
: of or relating to any of various catalysts made from sodium derivatives of alcohols (as isopropyl alcohol) and olefins (as propylene) and used in certain polymerizations (as of butadiene alone or with styrene and a high-viscosity oil) yielding synthetic rubbers
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Origin and Etymology of alfin
alcohol + olefin
First Known Use: 1947See Words from the same year
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