The word pseudosciences 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: 26
Highest Scoring Words With Friends™ Play In The Letters pseudosciences
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Seven Letter Word Alert: (57 words)
cession, ciscoes, codeine, codices, concede, concise, concuss, conduce, cosines, cousins, cuspids, decenes, deepens, denoise, depones, deposes, despise, diocese, discuss, dispose, encodes, epicene, episode, escudos, espouse, essence, eupneic, induces, osseins, penises, peonies, poesies, pounced, pounces, pussies, science, sconced, sconces, secedes, seconds, seduces, session, sinuses, species, spinode, spinose, spinous, spondee, spoused, spouses, succeed, success, suspend, unipeds, unipods, unposed, upsides