The word xerophthalmia 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: 31
Highest Scoring Words With Friends™ Play In The Letters xerophthalmia
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Seven Letter Word Alert: (47 words)
airhole, amphora, aptamer, apteria, armhole, atropia, exploit, haplite, harelip, hoplite, impaler, implore, laxator, lempira, loamier, loather, maltier, marital, marlite, martial, motlier, oatmeal, optimal, oxalate, oxheart, palmate, palmier, partial, patrial, pharaoh, philter, philtra, philtre, politer, premixt, primate, rathole, repilot, replait, taphole, thalami, thermal, toprail, toxemia, trample, triaxle, tripole