Walker felt their poison enter him instantly, a cold fire.

On getting into the room I at once looked for the means by which the poison had entered the system.

Several of the drums had been opened and spilled, but it was unlikely the poisons had entered ground water, she said.

When you are stung by an insect, poisons and other toxins enter your skin.

"The poison enters the bloodstream though the lungs and doesn't become active until about half a day," she said.

This poison must enter the bloodstream for it to work.

The male's poison enters a female's minute wound or lesion.

He ran on, and could only hope that not enough poison had entered his blood to tire him.

In order to survive, the surrounding flesh must be cut away quickly, before the poison enters the bloodstream.

When crops are grown in soil containing lead, the poison can enter the food chain.