The word acidophiles 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: 21
Highest Scoring Words With Friends™ Play In The Letters acidophiles
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Seven Letter Word Alert: (45 words)
adipose, aedilic, caliphs, celosia, chapels, cheapos, chilies, clashed, clasped, coalise, coldish, dailies, delphis, deposal, despoil, dipoles, doilies, edaphic, epochal, halides, haploid, helipad, hospice, icepail, idolise, ischial, isopach, laicise, liaised, pachisi, palsied, placode, plashed, ploidic, poached, poaches, policed, polices, scalped, shoaled, solaced, soliped, special, spliced, spoiled