toxicant

noun

tox·​i·​cant ˈtäk-si-kənt 

: a toxic agent

especially : pesticide

Examples of toxicant in a Sentence

Recent Examples on the Web

So there are other environmental toxicants that can lead to this. — Norah O'Donnell, CBS News, 26 Aug. 2026

Garcia said her health is also negatively affected by toxicants. — Vince Basada, Sacbee.com, 15 Aug. 2026

The ash from open burning can also contaminate soil and groundwater with persistent organic pollutants, heavy metals and other toxicants, creating more chances for people to be exposed to them through food and water. — Ellen M. Considine, The Conversation, 2 June 2026

In the 1970s, Claudia Miller, an allergist and environmental scientist, was studying how toxicants affect people in industrial settings and began noticing strange symptoms emerging after certain kinds of chemical exposures. — Kate Raphael, Discover Magazine, 23 June 2025

Word History

Etymology

Medieval Latin toxicant-, toxicans, present participle of toxicare to poison, from Latin toxicum

First Known Use

1879, in the meaning defined above

Rhymes for toxicant

• intoxicant

Medical Definition

toxicant

noun

tox·​i·​cant ˈtäk-si-kənt 

: a toxic agent

especially : one for insect control that kills rather than repels