ChEBI

Any minor or unwanted substance introduced into the environment that can have undesired effects.

A substance that kills or slows the growth of microorganisms, including bacteria, viruses, fungi and protozoans.

A xenobiotic (Greek, xenos "foreign"; bios "life") is a compound that is foreign to a living organism. Principal xenobiotics include: drugs, carcinogens and various compounds that have been introduced into the environment by artificial means.

An antimicrobial agent that is applied to non-living objects to destroy harmful microorganisms or to inhibit their activity.

A substance used locally on humans and other animals to destroy harmful microorganisms or to inhibit their activity (cf. disinfectants, which destroy microorganisms found on non-living objects, and antibiotics, which can be transported through the lymphatic system to destroy bacteria within the body).