codimer
noun
co·di·mer
(ˈ)kō¦dīmə(r)
plural -s
: a copolymer formed from two dissimilar molecules (as two olefins)
specifically, in petroleum refining : the mixture of hydrocarbons formed by the copolymerization of the butylenes which on hydrogenation yields a mixture of octanes used as a blending agent in aviation gasoline
Word History
Etymology
co- + dimer