antipneumococcal

adjective
an·​ti·​pneu·​mo·​coc·​cal | \ -ˌn(y)ü-mə-ˈkäk-əl How to pronounce antipneumococcal (audio) \
variants: or antipneumococcic \ -​ˈkäk-​(ˌ)sik How to pronounce antipneumococcic (audio) \ or antipneumococcus \ -​ˈkäk-​əs How to pronounce antipneumococcus (audio) \

Medical Definition of antipneumococcal

: destroying or inhibiting pneumococci