toxicity

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toxicity

[täk′sis·əd·ē]
(pharmacology)
The quality of being toxic.
The kind and amount of poison or toxin produced by a microorganism, or possessed by a chemical substance not of biological origin.
References in periodicals archive ?
Nothing in this letter addresses use of a single dose of nevirapine to prevent mother-to-infant transmission of HIV; these toxicities occurred in patients taking multiple doses.