Mercury is one of the oldest recognized and strongest poisons known to man.

"Then you should have used a stronger poison," Martok said.

Children can't easily deal with these strong poisons and developed the wisdom to avoid them.

Perhaps on the theory that stronger poison drives out weaker, she has tried to wean herself with murder.

A. You are on the right track when you say manage instead of eradicate, which even strong poisons cannot do.

"A snake on which one steps ejects a strong poison"

There's something noble about treating oneself with a strong poison.

Give me some drink; and bid the apothecary Bring the strong poison that I bought of him.

So, although cicutoxin is a known strong poison, a study showed that it can also be used as a natural antileukemia drug.

The chemical was a strong poison to him, one of the few his body was unable to reject.