The word vacuolisation 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: 23
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (46 words)
actions, actuals, alicant, atonias, atonics, auction, aviatic, avionic, canulas, cations, caution, coastal, colitis, consult, coolant, iconist, italics, lacinia, liaison, lotions, lunatic, nautica, nicosia, oculist, oilcans, oolitic, outsail, ovation, satanic, silicon, solicit, stoical, suction, sultana, toucans, uncivil, unclots, uncoils, unstoic, valiant, vicious, victual, violins, violist, volcano, voltaic