Which term describes chemicals designed to kill viruses?

• A. Viricidals
• B. Disinfectants
• C. Sterilants
• D. Antiseptics

Answer: (A)

The term to describe chemicals designed to kill viruses is viricidal. This word specifically denotes agents that inactivate or destroy viruses, preventing them from infecting cells. Disinfectants target a broad range of pathogens on inanimate surfaces but aren’t defined by antiviral action alone. Sterilants aim for complete sterility, destroying all microorganisms including spores, not just viruses. Antiseptics are used on living tissue to reduce microbes. While some disinfectants can be virucidal, viricidal is the precise label for antiviral activity.