The word bactericidal 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: 23
Highest Scoring Words With Friends™ Play In The Letters bactericidal
:
Seven Letter Word Alert: (49 words)
ablated, abreact, accited, acerbic, actable, aedilic, airable, airdate, albitic, article, baldric, bedrail, bracted, brailed, breccia, cabaret, calcite, caldera, caliber, calibre, carbide, cardiac, catbird, ciliate, circled, circlet, citable, citadel, datable, decabit, decrial, deictic, deliria, deltaic, dialect, dilater, driblet, icteric, labiate, libated, radiate, radical, radicel, radicle, recital, tiaraed, trailed, triable, triadic