A toxic substance, specifically a poison produced by the biological processes of organisms. / (usually proscribed) Synonym of toxicant: a toxic substance in a body requiring removal.

plural of toxin

Archaic form of toxin.

plural of toxine

Relating to a toxin

A neurotoxic protein produced by the bacterium Clostridium botulinum.

plural of botulinum toxin

Any of a family of related toxins with two major groups, Stx1 and Stx2, expressed by genes considered to be part of the genome of lambdoid prophages.

plural of Shiga toxin

A family of anti-cancerous toxins containing heat-killed strep bacteria in combination with other live bacteria, used as an injection into tumours, that can reduce or eliminate the cancers.