The word sarcostyle 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: 16
Highest Scoring Words With Friends™ Play In The Letters sarcostyle
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Seven Letter Word Alert: (61 words)
acetyls, acolyte, actress, alecost, artless, carless, cartels, casters, castles, castors, clarets, closers, closest, closets, cloyers, coalers, coaster, colters, corsets, costars, cotylae, cotylar, cotyles, crassly, cresols, crossly, crystal, ecstasy, escolar, escorts, lactose, lassoer, locates, lysates, oarless, oracles, ostlers, oysters, rayless, recasts, reclass, recoals, recoats, scalers, scarlet, scleras, scrotal, sectors, slaters, slayers, solacer, solaces, sortals, stayers, sterols, storeys, stylers, systole, toyless, treacly, tyloses