The word leptodactylid 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: 25
Highest Scoring Words With Friends™ Play In The Letters leptodactylid
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Seven Letter Word Alert: (65 words)
acolyte, adeptly, adopted, alditol, alloyed, aloetic, apocyte, capitol, cattily, cedilla, citadel, clodlet, clotted, coalite, coalpit, codetta, codilla, codille, collate, collide, cotidal, cotylae, dallied, daytide, decapod, deltaic, deltoid, dialect, dialled, dicotyl, dictate, dilated, dittoed, ectopia, ideally, lattice, located, lyddite, oldlace, opacity, opiated, optical, pettily, piloted, placode, plaided, plaited, playlet, plicate, ploidal, plotted, polecat, policed, tacitly, tactile, tadpole, tallied, tepidly, tidally, tiddley, tiptoed, topical, totaled, totally, typical