The word transaminating 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: 22
Highest Scoring Words With Friends™ Play In The Letters transaminating
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Seven Letter Word Alert: (56 words)
against, agarans, airings, amanita, amastia, amritas, anagram, anginas, animist, arising, artisan, artsman, attains, gastrin, ingrain, innings, instant, manning, mantras, margins, marinas, martian, martini, martins, matings, matting, migrant, minting, misting, raining, raising, ranting, ratings, ratting, ringman, rinsing, sangria, sariama, sinning, sitting, smiting, snaring, stamina, staring, stating, straint, tangram, tanning, tannins, tartans, tasting, timings, tinning, tinting, transit, tsarina