The word demodulation 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: 20
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (53 words)
adenoid, ailment, aliment, amidone, audited, daunted, deltoid, demount, diamond, dilated, diluent, diluted, donated, elation, elution, emotion, emulant, lamnoid, luddite, lunated, mantled, maudlin, midland, moonlit, moulded, moulted, mounded, mounted, mountie, munited, netmail, noduled, noodled, nutmeal, oldtime, outdone, outlead, outline, talonid, toenail, toluide, toolman, toolmen, unaided, unaimed, undated, undealt, unideal, unmated, unoiled, untamed, untiled, untimed