The word bioterrorism 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: 18
Highest Scoring Words With Friends™ Plays In The Letters bioterrorism
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Seven Letter Word Alert: (34 words)
betrims, bitsier, boomers, boomier, booster, booters, bromise, bromite, mirrors, mistier, mobster, moister, mortise, orbiter, reboost, reboots, reroots, retrims, rioters, roister, roomers, roomier, rooster, rooters, sootier, sorbite, sorrier, stirrer, terroir, terrors, timbers, timbres, tremors, trimers