Skip to the word

Added 9 October 2026

toxin

/ˈtɒksɪn/ noun

Latin root: toxicum Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about toxin at Wordnik → Where our words come from →

A poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species.

Origin

From Latin toxicum, equivalent to toxi- + -in.

From Wiktionary, via Kaikki.org (CC BY-SA)

Back to today's word