As nouns the difference between toxicity and toxicant
is that toxicity is degree to which a toxic substance may harm a cell or organism while toxicant is a toxic or poisonous substance.
As an adjective toxicant is
capable of causing damage by poisoning.
toxicity
Noun
(en-noun)
(toxicology) Degree to which a toxic substance may harm a cell or organism.
(toxicology) The quality of being toxic.
Related terms
* toxic