The word immunological 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: 28
Highest Scoring Words With Friends™ Play In The Letters immunological
:
Seven Letter Word Alert: (24 words)
alginic, ammonic, calling, calming, cingula, coaling, coiling, cooling, culling, gallium, gluonic, illogic, lingual, logical, looming, mailing, maiming, mauling, milling, million, minicam, minimal, monilia, mulling