The word chloroprenes 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: 22
Highest Scoring Words With Friends™ Plays In The Letters chloroprenes
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Seven Letter Word Alert: (50 words)
chooser, cloners, coherer, coheres, colorer, console, coolers, corners, coroner, creoles, creosol, crooner, echelon, echoers, elopers, enclose, encores, helpers, hencoop, honoree, honorer, lechers, necrose, onshore, openers, operons, percher, perches, phenols, ponchos, pooches, porches, precool, rechose, reclone, reclose, recolor, rehones, rehonor, reopens, reperch, reposer, rescope, rescore, reshore, respool, scooper, scorner, snooper, spooler