the GNU version of the Collaborative International Dictionary of English
adj. Destructive of bacteria.
The Century Dictionary and Cyclopedia
Destructive to bacteria.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. preventing infection by inhibiting the growth or action of microorganisms
Word Usage
"It becomes "bactericidal," produces a bactericidal poison (called an alexin) which is usually present in normal blood, but is greatly increased when large numbers of certain poisonous microbes (_e. g._ those of typhoid fever) get into the blood."