Synonyms of toxin

toxin

noun

ˈtäk-sən 

as in poison

a substance that by chemical action can kill or injure a living thing

read a pamphlet on the toxin responsible for botulism, a food poisoning that can cause paralysis and even death in some cases

Synonyms & Similar Words

• poison
• toxic
• disease
• venom
• pesticide
• virus
• toxicant
• bane
• contagion
• insecticide
• herbicide
• cancer
• germicide
• fungicide
• microbicide

Antonyms & Near Antonyms

• antidote
• antivenom
• antivenin
• cure
• elixir
• panacea
• mithridate
• cure-all

Example Sentences

Recent Examples of toxin

Heat can act on a developing fetus much like a toxin, interfering with organ development early in pregnancy and with growth later on. — Catarina Rolfsdotter-Jansson, Forbes.com, 22 Aug. 2026

However, a cleanse is focused on consuming appropriate healthy foods, minerals and vitamins, while detoxes focus on removing toxins and refreshing the body. — Bestreviews, Chicago Tribune, 20 Aug. 2026

The nectar might contain some toxins, but the hummers and moths don’t drink enough to be harmed. — Joan Morris, Mercury News, 17 Aug. 2026

These include tenocytes [the primary component of tendons]; the cells that wrap around blood vessels and stabilize the circulatory system; the smooth muscle cells of the colon; and kidney epithelial cells, which filter toxins from the blood. — Ingrid Wickelgren, Quanta Magazine, 14 Aug. 2026