The word allelomorphic 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: 27
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (51 words)
aircell, aircool, airhole, alcohol, allelic, armhole, caliper, calomel, calorie, camphor, campier, carpool, chiller, chimera, chloral, cholera, chomper, chorale, chromel, claimer, clamper, coalier, collier, compare, compile, corolla, crimple, epochal, harelip, helical, impaler, impeach, implore, lempira, loamier, loopier, micella, miracle, moocher, morphic, ocellar, palmier, phallic, poacher, polaric, polemic, precool, rechill, reclaim, reclamp, replica