To cause to be bitter or resentful; SYN. envenom, acerbate.

1. To taint or impregnate with venom, or any substance noxious to life.
2. To poison; to render dangerous or deadly by poison, as food, drink, a weapon; also, to poison (a person) by impregnating with venom.
3. To taint or impregnate with bitterness, malice, or hatred; to imbue as with venom; to embitter.

1. To add poison to; SYN. envenom.
2. To administer poison to
3. To kill by its poison:
4. To kill with poison
5. To spoil as if by poison

1. To irritate or vex
2. To produce a festering or inflamed effect; to cause a sore.