The word oscillograms 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™ Play In The Letters oscillograms
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Seven Letter Word Alert: (20 words)
aircool, clamors, collars, colossi, corolla, garlics, gliomas, gorilla, isogram, logical, miscall, mosaics, racisms, rosalic, sailors, scillas, scorias, scrolls, slaloms, socials