toxin
toxin definition
toxin (täk′sin)
noun
- any of various poisonous compounds produced by some microorganisms and causing certain diseases
- any of various similar poisons, related to proteins, formed in certain plants, as ricin, or secreted by certain animals, as snake venom: toxins, when injected into animals or humans, typically initiate the formation of antitoxins
Etymology: tox(ic) + -in
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