The word colorimetries 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: 20
Highest Scoring Words With Friends™ Plays In The Letters colorimetries
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Seven Letter Word Alert: (99 words)
cleomes, coeloms, coesite, colitis, colorer, colters, coolers, coolest, cooties, coterie, creoles, creosol, crosier, elector, elicits, elitism, emetics, emoters, erector, erotics, erotise, estriol, iolites, isomere, itemise, limiter, loiters, looters, lorries, meiotic, melters, mercers, mercies, meteors, metrics, metrise, miscite, mistier, miterer, moister, mortise, motlier, ocelots, oiliest, omelets, oolites, oolitic, orioles, osmotic, reciter, recites, reclose, recoils, recolor, rectors, reemits, reliers, remelts, remorse, remoter, remotes, reroots, rescore, reslice, resmelt, restore, retiles, retimer, retimes, retires, retools, retries, retrims, rioters, roilier, roister, roomers, roomier, rooster, rooters, roselet, scooter, siltier, slimier, smelter, smilier, solicit, somitic, sootier, sterile, stoolie, telecom, telomer, toilers, toolers, tremolo, tremors, trimers, trireme