The word ophthalmoscopy 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: 33
Highest Scoring Words With Friends™ Play In The Letters ophthalmoscopy
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Seven Letter Word Alert: (25 words)
alcopop, cahoots, calypso, chyloma, compost, cystoma, cytomas, cytosol, hatshop, laptops, moolahs, ooplasm, ooplast, ooscopy, phthaly, polyoma, scotoma, shampoo, smoochy, smoothy, soothly, splatch, splotch, stomach, toyshop