The word lacerating 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: 17
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (40 words)
agatine, alicant, aligner, angelic, article, carinae, carinal, carnage, cartage, carting, central, certain, clinger, cranial, crating, elating, gelatin, genital, glacier, glancer, gracile, granite, ingrate, latrine, learing, ratline, realign, recital, reclang, regalia, reliant, retinal, ringlet, tagline, tanager, tangier, tearing, tingler, tracing, trenail