poison *
toxicant
poisonous substance

Lead, at certain contact degrees, is a poisonous substance to animals, including humans.

The sure sign of an unhealthy addiction to a highly poisonous substance.

It's one of the easiest poisonous substances to test for.

The tip of the arrow was dipped in a highly poisonous substance.

If there is evidence or suspicion of drugs or poisonous substances having been taken.

It's all coated with a substance poisonous to the skin of living things.

Be careful about being exposed to poisonous substances while breast-feeding.

Nicotine, the poisonous substance in tobacco, also has soothing effects.

In other words, Rahu has a role to play whenever a poisonous substance is involved.

We found out too late that they exuded a poisonous substance.