TOXIN Synonyms: 23 Similar and Opposite Words

toxin

noun

ˈtäk-sən

Definition of toxin

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

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of toxin This whole month is a bit of an emotional landmine, to put it lightly, but the first couple days of October are especially laced with toxins. — Steph Koyfman, Condé Nast Traveler, 28 Sep. 2026 Toxicologists classify bisphenols as toxins called endocrine disruptors. — Sean McCann, The Conversation, 28 Sep. 2026 Doing so ensures the mulch remains toxin-free, biodegradable, and natural, which is crucial for maintaining a healthy garden environment. — Sj McShane, Martha Stewart, 27 Sep. 2026 Breaking the dependency loop For people trying to quit vaping, health providers warn that switching to cigarettes reintroduces harmful toxins, tar and carbon monoxide. — Khloe Quill, FOXNews.com, 24 Sep. 2026 See All Example Sentences for toxin

Recent Examples of Synonyms for toxin

Noun

The first image from the episode (see it above) shows Butters in what appears to be his backyard with the X-Pest exterminator guy, who has strapped on his tank of poison and has his sprayer wand at the ready.

— Tom Tapp, Deadline, 29 Sep. 2026
The clues that Swift’s ghost is leaving for Johnson still aren’t really hitting until Johnson’s character starts feeling the effects of the literal poison being fed to her in her coffee and wine and realizes this man may be bad.

— Alejandra Gularte, Vulture, 28 Sep. 2026

Definition of poison

Noun

In late May, about 50,000 people in Orange County were evacuated because, at a Garden Grove site operated by GKN Aerospace, tanks holding a volatile hazardous chemical called methyl methacrylate were at risk of exploding or leaking toxics.

— Patt Morrison, Los Angeles Times, 15 July 2026
Munoz is an independent toxicologist working in collaboration with MAHA against pesticides and toxics.

— Sandee LaMotte, CNN Money, 10 July 2026

Definition of toxic

Noun

Alzheimer’s disease and other types of dementia are difficult to study, in part because diagnosing the disease early in people is challenging.

— Julie Moreno, The Conversation, 6 Oct. 2026
Younger demographics are being diagnosed with increasing cases of colon cancer, and people of color face disproportionately higher mortality rates from the disease.

— Marissa R. Moss, Rolling Stone, 6 Oct. 2026

Definition of disease

Browse Nearby Words

toxics

toxin

toxins

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“Toxin.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/toxin. Accessed 9 Oct. 2026.

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Synonyms of toxin

noun

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