The word enterovirus 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: 17
Highest Scoring Words With Friends™ Play In The Letters enterovirus
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Seven Letter Word Alert: (73 words)
ensuite, ensurer, entries, enviers, envious, erosive, erotise, estrone, inerter, insurer, inverse, inverts, ironers, nervier, nervous, neuters, nitrous, norites, nutsier, orients, overrun, overset, oversit, overuse, reinter, renters, rerents, rerinse, reroute, restive, restore, retires, retours, retries, retunes, returns, reunite, reverts, reviser, revotes, revuist, rioters, riveter, roister, routers, routine, runtier, rustier, sievert, snorter, sterner, stonier, stourie, striven, striver, tenures, tonsure, tourers, trienes, triones, trouser, turners, uniters, unreset, unrivet, ureters, uterine, venture, versine, version, vetoers, virtues, voteens