The word copolymerized 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: 35
Highest Scoring Words With Friends™ Play In The Letters copolymerized
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Seven Letter Word Alert: (47 words)
clomped, compere, compile, crimped, crimple, croodle, decolor, decoyer, demerol, demirep, deplore, doomily, dormice, epiderm, eyedrop, implode, implore, loopier, lycopod, melodic, modeler, moldier, moodier, moodily, myeloic, myeloid, odorize, pedicel, pedicle, periled, pierced, polemic, policed, polymer, precode, precool, premold, proceed, pyloric, redpole, remodel, reoiled, repiled, replied, ycleped, yielder, yodeler