The word acrocliniums 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: 24
Highest Scoring Words With Friends™ Play In The Letters acrocliniums
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Seven Letter Word Alert: (50 words)
aclinic, calcium, calicos, caloric, clamors, clamour, clarion, clinics, colicin, columns, comical, concurs, conical, council, cranium, crimson, crucial, curials, iconism, incisor, insular, laconic, liaison, lionism, marconi, marlins, masonic, microns, miscoin, monilia, morulas, moulins, mucosal, musical, nicosia, normals, occular, oculars, oilcans, oscular, rosalic, ruminal, scoriac, silicon, similar, sirloin, solanum, uncoils, unmoral, urinals