The word calorimetric 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™ Plays In The Letters
Seven Letter Word Alert: (43 words)
airtime, aloetic, armoire, article, cacolet, calcite, caloric, calorie, caroler, ceramic, ciliate, circler, circlet, claimer, climate, coalier, coalite, coeliac, cometic, comical, correct, creator, erotica, erratic, icteric, limiter, loamier, maltier, marlite, meiotic, metical, militar, miracle, motlier, octamer, racemic, reactor, realtor, recital, reclaim, retrial, roilier, trailer