The word adenovirus 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 adenovirus
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Seven Letter Word Alert: (39 words)
adonise, adviser, advisor, aneroid, anodise, aroused, asunder, avoider, devious, devisor, devours, donairs, durians, envious, evasion, indorse, inroads, insured, invader, invades, nervous, ordains, ovaries, ravines, resound, roadies, rosined, sandier, sardine, saviour, savored, sounder, unaired, undoers, unsaved, various, vendors, version, voiders