toxicant
nounUK /ˈtɒksɪkənt/
US /ˈtɑːksɪkənt/
A toxicant is a poison or something harmful that can make people or animals sick.
The scientists found a toxicant in the water that was hurting the fish.
OTHER MEANINGS
2. A substance that is harmful to living things, especially one made by humans.
Factories must be careful not to release toxicants into the river.
3. Used as an adjective to describe something poisonous or harmful.
The toxicant fumes made everyone leave the room quickly.
4. Any agent that can damage health when it enters the body.
Lead is a toxicant that can harm the brain.