The word carotenemia 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: 18
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (41 words)
acerate, acetone, aconite, amentia, anaemic, animate, arenite, carinae, carmine, certain, coatman, coterie, cremate, emanate, emirate, enactor, enteric, enticer, erotica, etaerio, incomer, manatee, marconi, martian, matinee, meatier, minaret, miocene, moraine, narcoma, nematic, octamer, onetime, otarine, raiment, reenact, romaine, romance, tonearm, trainee, triaene