The word arterializing 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: 26
Highest Scoring Words With Friends™ Plays In The Letters arterializing
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Seven Letter Word Alert: (62 words)
agatine, agatize, airline, aligner, angrier, arraign, arrange, earring, elating, gelatin, genital, girlier, glazier, gnarler, grainer, granite, granter, igniter, inertia, ingrate, initial, intagli, lairing, latrine, learing, lignite, lintier, narrate, railing, rainier, rangier, ratline, realgar, realign, rearing, regalia, regrant, reliant, retinal, retrain, retrial, ringlet, ritzier, tagline, tailing, tanager, tangier, tarring, tearing, teazing, terrain, tiering, tingler, trailer, trainer, trenail, tzarina, zealant, zingara, zingare, zingari, zingier