toxin
UK: ˈtɒksɪn | US: ˈtɑːksɪn
n. a poisonous substance, especially one produced by a living organism (e.g., bacteria, plants, or animals).
The word "toxin" derives from the Greek "toxikon" (poison for arrows), originally referring to poisonous substances used on weapons. The root "tox-" (poison) evolved through Latin "toxicum" and French "toxique" before entering English. The suffix "-in" is commonly used in biochemistry to denote substances (e.g., protein, insulin). The term reflects the historical link between poison and weaponry, later generalized to biological poisons.
Snake venom contains powerful toxins that can paralyze prey.
Scientists are studying how to neutralize the toxin produced by the bacteria.
Some mushrooms release toxins when ingested, causing severe illness.
The lab detected environmental toxins in the water supply.
Antidotes are developed to counteract specific toxins.