The word aspergillus 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: 19
Highest Scoring Words With Friends™ Play In The Letters aspergillus
:
Seven Letter Word Alert: (49 words)
airless, allures, arillus, aspires, earplug, gapless, gaspers, gaspier, gassier, grilles, gullies, gulpers, largess, laurels, ligases, lipases, lipless, lispers, lugsail, palsies, paresis, perusal, pillage, pillars, plagues, pleural, plurals, praises, pullers, pulsars, pulsers, pussier, rallies, replugs, resails, sailers, seagull, serials, spaller, spiller, spirals, spireas, splurge, spurges, sullies, suspire, upraise, uprisal, uprises