Definitions for poison
ˈpɔɪ zənpoi·son

poison, toxicant, poisonous substance(noun)
any substance that causes injury or illness or death of a living organism
poison(verb)
anything that harms or destroys
"the poison of fascism"
poison(verb)
spoil as if by poison
"poison someone's mind"; "poison the atmosphere in the office"
poison(verb)
kill with poison
"She poisoned her husband"
poison, envenom(verb)
add poison to
"Her husband poisoned her drink in order to kill her"
poison(verb)
kill by its poison
"This mushrooms can poison"
poison(verb)
administer poison to
"She poisoned her husband but he did not die"

poison(Noun)
A substance that is harmful or lethal to a living organism.
We used a poison to kill the weeds.
poison(Noun)
Something that harms a person or thing.
Gossip is a malicious poison.
poison(Noun)
A drink; liquor.
poison(Verb)
To use poison to kill or paralyse somebody
The assassin poisoned the king.
poison(Verb)
To pollute; to cause some part of the environment to become poisonous
That factory is poisoning the river.
poison(Verb)
To cause something to become much worse
poison(Verb)
To cause someone to hate or to have unfair negative opinions
She's poisoned him against all his old friends.

Origin: From poison, from potio, from poto. See also potion and potable.

Poison(noun)
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
Poison(noun)
that which taints or destroys moral purity or health; as, the poison of evil example; the poison of sin
Poison(noun)
to put poison upon or into; to infect with poison; as, to poison an arrow; to poison food or drink
Poison(noun)
to injure or kill by poison; to administer poison to
Poison(noun)
to taint; to corrupt; to vitiate; as, vice poisons happiness; slander poisoned his mind
Poison(verb)
to act as, or convey, a poison

Origin: [Cf. OF. poisonner, F. empoissoner, L. potionare to give to drink. See Poison, n.]

Poison
In the context of biology, poisons are substances that cause disturbances to organisms, usually by chemical reaction or other activity on the molecular scale, when a sufficient quantity is absorbed by an organism. The fields of medicine and zoology often distinguish a poison from a toxin, and from a venom. Toxins are poisons produced by some biological function in nature, and venoms are usually defined as toxins that are injected by a bite or sting to cause their effect, while other poisons are generally defined as substances absorbed through epithelial linings such as the skin or gut.

Poison
poi′zn, n. any substance which, introduced into the living organism, tends to destroy its life or impair its health: anything malignant or infectious: that which taints or destroys moral purity.—v.t. to infect or to kill with poison: to taint: to mar: to embitter: to corrupt.—adj. Poi′sonable.—ns. Poi′soner; Poi′son-fang, one of two large tubular teeth in the upper jaw of venomous serpents, through which poison passes from glands at their roots when the animal bites; Poi′son-gland, a gland which secretes poison; Poi′son-ī′vy, a shrub-vine of North America, causing a cutaneous eruption; Poi′son-nut, the nux vomica.—adj. Poi′sonous, having the quality of poison: destructive: impairing soundness or purity.—adv. Poi′sonously.—n. Poi′sonousness. [Fr.,—L. potio, a draught—potāre, to drink.]

poison
Song lyrics by poison -- Explore a large variety of song lyrics performed by poison on the Lyrics.com website.

Chaldean Numerology
The numerical value of poison in Chaldean Numerology is: 4
Pythagorean Numerology
The numerical value of poison in Pythagorean Numerology is: 7