The word haemodialyses 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 haemodialyses
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Seven Letter Word Alert: (69 words)
aediles, aidless, aimless, alamode, aldoses, aliased, aliases, amassed, amylase, amyloid, ashamed, assayed, dahlias, dalasis, damsels, dayless, deashes, delimes, demises, deslime, dialyse, diesels, disease, dismals, dismays, elodeas, emailed, eomyids, essayed, eyelash, eyelids, halides, hayseed, holiday, hyaloid, isohels, ladyish, lassoed, leashed, leashes, limeade, malaise, measles, medleys, meioses, messiah, messily, misdeal, misdoes, mislays, mislead, moseyed, myeloid, oilseed, salamis, samoyed, seamaid, seaside, seedily, shadily, shields, shoaled, siamese, slashed, sloshed, smashed, smileys, someday, yealmed