One entry found for toxin.

Main Entry: tox·in
Pronunciation: täk-sn
Function: noun
Etymology: derived from Latin tox- "poisonous" and English -in "chemical compound"; tox- from toxicum "poison," from Greek toxikon "arrow poison," from toxon "bow, arrow" --related to INTOXICATE, TOXIC --see Word History at INTOXICATE
: a substance produced by a living organism (as a bacterium) that is very poisonous to other organisms and that usually causes antibody formation -- compare ANTITOXIN