The word cyclooxygenases 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: 36
Highest Scoring Words With Friends™ Play In The Letters cyclooxygenases
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Seven Letter Word Alert: (49 words)
accloys, acyloxy, ageless, calyces, calyxes, cancels, cassoon, cleanse, cogency, cognacs, cologne, conceal, congeal, console, coxless, coyness, cyanose, cyclane, cyclase, cyclene, cyclone, ecology, egoless, encases, enclose, enolase, enseals, exogens, gayness, glances, glycans, glycose, lagoons, laxness, loosens, lysogen, nosegay, oxolane, oxygens, saloons, scalene, sconces, seances, slogans, solaces, synoecy, xylenes, xylogen, xyloses