The word xeroradiography 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: 32
Highest Scoring Words With Friends™ Play In The Letters xeroradiography
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Seven Letter Word Alert: (30 words)
airdrop, airhead, arrayed, digraph, drapery, drayage, eardrop, exopoda, exordia, goopier, graphed, hagride, hagrode, hardier, hayride, hexapod, hoarder, hoarier, hypoxia, oxyopia, parader, paradox, prodigy, proxied, radiary, rapider, regraph, roadhog, xyphoid, yardage