The word autoradiographs 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 autoradiographs
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Seven Letter Word Alert: (79 words)
adaptor, agatoid, agoutis, airdrop, airgaps, airport, aphagia, aphasia, apthous, ardours, astroid, atropia, auditor, aupairs, auroras, authors, autopod, dashpot, digraph, dishrag, disroot, disrupt, dogship, draught, dropout, drought, dustrag, goatish, goodish, guitars, hairdos, hardtop, harpist, hotdogs, hotrods, hotspur, orators, outdrag, outraps, outroar, outsoar, outspar, pagodas, pariahs, parotid, parrots, pigouts, prodrug, protura, prudish, prurigo, pushrod, ragouts, raphids, raptors, rigours, riotous, roadhog, roguish, rugrats, rupiahs, saguaro, spright, stirrup, stridor, toadish, toroids, torpids, torpors, tripods, troughs, turgors, turrids, upright, uproars, uproots, upstair, uropods, utopias