toxicant
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tox·i·cant

noun \ˈtäk-si-kənt\

Definition of TOXICANT

: a toxic agent; especially : pesticide

Origin of TOXICANT

Medieval Latin toxicant-, toxicans, present participle of toxicare to poison, from Latin toxicum
First Known Use: 1879

tox·i·cant

noun \ˈtäk-si-kənt\   (Medical Dictionary)

Medical Definition of TOXICANT

: a toxic agent; especially : one for insect control that kills rather than repels

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