The word ophthalmoscope 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: 31
Highest Scoring Words With Friends™ Play In The Letters ophthalmoscope
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Seven Letter Word Alert: (59 words)
alcopop, alecost, amplest, apostle, applets, cahoots, calmest, caplets, chalets, chapels, chaplet, cheapos, cholate, clothes, coeloms, compels, compose, compost, compote, coolest, epochal, hamlets, hatches, hatshop, healths, hopples, lactose, laptops, latches, loathes, locates, maltose, matches, mooches, moolahs, ocelots, ooplasm, ooplast, ooscope, ootheca, osteoma, papoose, patches, poaches, polecat, pomelos, pooches, pothole, satchel, schlepp, scotoma, shampoo, splatch, splotch, stomach, taphole, teashop, toecaps, topples