The word oligomenorrhea 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: 23
Highest Scoring Words With Friends™ Play In The Letters oligomenorrhea
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Seven Letter Word Alert: (89 words)
aerogel, aileron, airhole, aligner, almoner, angrier, armhole, armoire, earlier, earring, enlarge, geminal, general, germane, germier, gleaner, gmelina, gnarler, grainer, gremlin, groaner, groomer, halogen, harming, healing, hearing, heeling, hegemon, hemline, hernial, heroine, herring, hoarier, homolog, honoree, honorer, hormone, hornier, inhaler, ionomer, ironage, learing, learner, leering, leghorn, legroom, lineage, loamier, looming, loonier, mangier, mangler, manhole, manlier, mariner, marring, meagrer, mealier, melange, menorah, mileage, mineral, mingler, mongrel, monolog, moorage, moorhen, mooring, moraine, oogonia, oranger, oregano, rangier, realign, reaming, rearing, reeling, regimen, regroom, rehinge, rehonor, reigner, reimage, relearn, roaming, roaring, romaine, roomier, rooming