Generically, any agent that destroys microbes. However, usage of the term is increasingly being confined to agents that prevent or reduce the transmission of Sexually Transmitted Diseases.

A general term for the drugs, chemicals, or other substances that kill microbes (tiny organisms that cause disease). Among the antimicrobial agents in use today are: antibacterial drugs (kill bacteria); antiviral agents (kill viruses); antifungal agents (kill fungi); and antiparisitic drugs (kill parasites).

A general term for the drugs, chemicals, or other substances that kill microbes (tiny organisms that cause disease). Among the antimicrobial agents in use today are: antibacterial drugs (kill bacteria [..]

Any substance of natural, semi-synthetic, or synthetic origin that kills or inhibits the growth of a microorganism but causes little or no damage to the host