The word elastomers 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: 14
Highest Scoring Words With Friends™ Play In The Letters elastomers
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Seven Letter Word Alert: (58 words)
areoles, armless, armlets, artless, earless, elaters, emoters, lassoer, leasers, maestro, maltose, masters, measles, melters, meteors, molests, morales, morsels, mortals, oarless, oleates, omelets, osselet, ostlers, realest, relates, remates, remelts, remotes, resales, reseals, reseats, resmelt, resoles, restems, reteams, roseate, roselet, sealers, seamers, seamost, seaters, slaters, smelter, sortals, stealer, steamer, stereos, sterols, streams, stroams, stromal, tealess, teasels, teasers, telomer, toeless, tramels