IPA: /vɪˈraɪsɪdəl/
KK: /vɪˈraɪsɪdəl/
Relating to a substance that can kill viruses.
The new disinfectant is viricidal and effective against many common viruses.
Viricidal → It is formed from "virus" (from Latin *virus*, meaning poison or venom) and "-cidal" (from Latin *caedere*, meaning to kill). The word "viricidal" means capable of killing viruses.
Think of 'virus' as something harmful and '-cidal' as meaning to kill — that's why viricidal refers to something that kills viruses.