The word nucleoplasm 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: 24
Highest Scoring Words With Friends™ Play In The Letters nucleoplasm
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Seven Letter Word Alert: (48 words)
acouple, acumens, alecups, alumels, ampoule, callose, callous, calomel, capsule, cleanup, closeup, coalmen, columns, compels, consume, counsel, couples, cupolas, encalms, encamps, enclasp, leucoma, locales, locules, macules, malleus, mensual, mollusc, mucosae, mucosal, muscone, plasmon, plumose, pollens, pounces, pumelos, scallop, scalpel, solanum, specula, sunlamp, uncapes, unclamp, unclasp, unclose, unlaces, unspell, upscale