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1. a. : a substance that through its chemical action usually kills, injures, or impairs an organism. b (1) : something destructive or harmful. (2) : an object of aversion or abhorrence. 2. : a substance that inhibits the activity of another substance or the course of a reaction or process.
POISON definition: 1. a substance that can make people or animals ill or kill them if they eat or drink it: 2. to…. Learn more.
A poison is any chemical substance that is harmful or lethal to living organisms. The term is used in a wide range of scientific fields and industries, where it is often specifically defined. It may also be applied colloquially or figuratively, with a broad sense.
Poison is a substance that can harm or even kill you. Arsenic and cyanide are both types of poison —so stay away from them! Mean people can also be poison, so stay away from them too. Poison refers to the harmful substance itself, or the act of giving it to someone.
poi·son. (poi′zən) n. 1. A substance that causes injury, illness, or death, especially by chemical means. 2. Something destructive or fatal. 3. Chemistry A substance that inhibits another substance or a reaction: a catalyst poison.
poison is the general word: a poison for insects. A toxin is a poison produced by an organism; it is esp. used in medicine in reference to disease-causing bacterial secretions: A toxin produces diphtheria. venom is esp. used of the poisons secreted by certain animals, usually injected by bite or sting: the venom of a snake.
noun. any substance that can impair function, cause structural damage, or otherwise injure the body toxic. something that destroys, corrupts, etc. the poison of fascism. a substance that retards a chemical reaction or destroys or inhibits the activity of a catalyst.
noun. poisons. A substance causing illness or death when eaten, drunk, or absorbed even in relatively small quantities. Webster's New World. Similar definitions. Anything harmful or destructive to happiness or welfare, such as an idea, emotion, etc. Webster's New World. Similar definitions.
POISON meaning: 1 : a substance that can cause people or animals to die or to become very sick if it gets into their bodies especially by being swallowed; 2 : something (such as an idea, emotion, or situation) that is very harmful or unpleasant
In other dictionaries. poisǒun, n. in Middle English Dictionary. I. Literal uses. I.1.a. c1225–. Material that causes illness or death when introduced into or absorbed by a living organism, esp. when able to kill by rapid action and when taken in small quantity; a substance of this kind.
