Perniciousness
Part of speech: noun
Definition: The condition of being pernicious; destructiveness
Toxicity
Part of speech: noun
Definition: Degree to which a toxic substance may harm a cell or organism.The quality of being toxic.
Perniciousness as a noun is the condition of being pernicious; destructiveness while Toxicity as a noun is degree to which a toxic substance may harm a cell or organism.
Part of speech: noun
Definition: The condition of being pernicious; destructiveness
Part of speech: noun
Definition: Degree to which a toxic substance may harm a cell or organism.The quality of being toxic.
We hope you now know whether to use Perniciousness or Toxicity in your sentence.