alfin

adjective

al·​fin

ˈal-fən

: 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

Word History

Etymology

alcohol + olefin

First Known Use

1947, in the meaning defined above

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