The word solarisation 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: 14
Highest Scoring Words With Friends™ Plays In The Letters solarisation
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Seven Letter Word Alert: (23 words)
artisan, atonias, instars, lariats, liaison, lotions, nostril, oration, raisins, rations, sailors, saloons, sirloin, soloist, sonatas, sortals, stanols, strains, tailors, tarsals, tonsils, torsion, tsarina