The word decalcification is playable in Words With Friends™, but 1 blank substituting for the letter 'c' is 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: 26
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (75 words)
accited, aclinic, acnodal, aconite, actinic, aedilic, aeolian, alicant, aloetic, anilide, antacid, cacolet, calcine, calcite, candela, ciliate, citadel, cloacae, coacted, coalite, cocaine, coeliac, colicin, conceal, conceit, confect, confide, conical, conidia, cotidal, decalin, defiant, deficit, deictic, deltaic, dialect, diction, dioecic, edition, elation, faction, fainted, falcate, fanatic, fancied, fantail, fiction, filiate, flaccid, floated, foliate, icecold, idiotic, incited, infidel, infield, inflate, inflect, inflict, initial, lacinia, laconic, lactone, lection, located, noticed, oceanic, octadic, tacnode, tailfan, tailfin, talonid, tenfold, tinfoil, toenail