- (n.) Any agent which, when introduced into the animal organism, is capable of producing a morbid, noxious or deadly effect upon it; as, morphine is a deadly poison; the poison of pestilential diseases.
- (n.) To injure or kill by poison; to administer poison to.
- (n.) To taint; to corrupt; to vitiate; as, vice poisons happiness; slander poisoned his mind.
- (n.) That which taints or destroys moral purity or health; as, the poison of evil example; the poison of sin.
- (n.) To put poison upon or into; to infect with poison; as, to poison an arrow; to poison food or drink.
- (v.i.) To act as or convey, a poison.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). poison. Retrieved September 23, 2026, from http://smartdefine.org/poison/definitions/2046934 |
| Chicago | Webster's. 2011. "poison" http://smartdefine.org/poison/definitions/2046934 (accessed September 23, 2026). |
| Harvard | Webster's 2011, poison, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/poison/definitions/2046934>. |
| MLA | Webster's. "poison" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/poison/definitions/2046934> |