toxicity

noun
UK /tɒkˈsɪsɪti/
US /tɑːkˈsɪsəti/

Toxicity is how harmful or poisonous something is.

The scientists tested the water for toxicity before letting people swim in it.


OTHER MEANINGS

2. The quality of being very mean or harmful in how people treat each other.

The toxicity in the online comments made everyone feel upset.

3. The degree to which a medicine or substance can hurt the body.

Doctors checked the drug's toxicity before giving it to patients.

4. Harmful effects caused by pollution in the environment.

The toxicity of the river worried the nearby farmers.