/ tɒkˈsɪsəti; NAmE tɑːk-/ noun ( pl. -ies ) ( technical )
1.
[ U ] the quality of being poisonous; the extent to which sth is poisonous :
substances with high levels of toxicity
2.
[ C ] the effect that a poisonous substance has :
Minor toxicities of this drug include nausea and vomiting.