The word carcinomatous 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
Seven Letter Word Alert: (94 words)
account, accurst, acomous, actions, amorous, amounts, amritas, arcanum, arctans, arctics, artisan, artsman, atomics, atonias, atonics, atriums, auction, autocar, cantors, cartons, cartoon, cations, caustic, caution, citrons, coactor, coarcts, coatman, coconut, concurs, consort, contour, coronas, cranium, cratons, crimson, crouton, cuatros, curacao, curtain, incrust, maniacs, mantras, marconi, marinas, maroons, martian, martins, masonic, matrons, microns, misturn, monitor, moronic, motions, narcoma, nautica, nitrous, nostrum, oarsman, omicron, ominous, oncotic, oration, osmotic, outmans, outsoar, raccoon, racoons, rainout, rations, riotous, samurai, sanctum, sarcoma, satanic, saurian, scatoma, scoriac, scotoma, scrotum, somatic, stamina, suction, sunroom, tarmacs, torsion, toucans, tourism, traumas, tsarina, tsunami, uncarts, unstoic