The word copolymerizes is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 34
Highest Scoring Words With Friends™ Play In The Letters copolymerizes
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Seven Letter Word Alert: (67 words)
cleomes, clerisy, cloyers, coeloms, compels, compere, compile, compose, coolers, copiers, creoles, creosol, crimple, crisply, eclipse, elopers, empires, employs, epimers, episome, implore, imposer, isomere, isozyme, leprosy, loopier, mercies, miscopy, miserly, misrely, myeloic, oosperm, orioles, pierces, polemic, polices, polymer, polyose, pomelos, precise, precool, prelims, premise, promise, pyloric, recipes, reclips, reclose, recoils, repiles, replies, rescope, reslice, respice, respool, scooper, scorpio, scrimpy, simpler, spermic, spicery, splicer, spoiler, spooler, yelmers, yelpers, zeroise