Poison meaning

poi'zən
A substance that causes injury, illness, or death, especially by chemical means.
noun
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The definition of a poison is a substance that destroys, makes sick or kills, or anything that is harmful to happiness.

An example of a poison is cyanide.

An example of a poison is a negative attitude that destroys a positive environment.

noun
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Poison is defined as to give or put in a substance that destroys, makes sick or kills, or to corrupt a mind.

An example of poison is to pour lethal drugs into food.

An example of poison is to tell a child that they will never amount to anything; to poison the child's mind.

verb
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Something destructive or fatal.
noun
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A substance that inhibits another substance or a reaction.

A catalyst poison.

noun
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To kill or harm with poison.
verb
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To put poison on or into.

Poisoning arrows; poisoned the drink.

verb
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To inhibit (a substance or reaction).
verb
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To give poison to; harm or destroy by means of poison.
verb
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Poisonous.
adjective
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A substance causing illness or death when eaten, drunk, or absorbed even in relatively small quantities.
noun
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Anything harmful or destructive to happiness or welfare, such as an idea, emotion, etc.
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In a nuclear reactor, a substance, as boron, that readily absorbs thermal neutrons from a chain reaction, thereby decreasing the reactivity of a reactor core: it is used for safety or control.
noun
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A substance that inhibits or destroys the activity of a catalyst, enzyme, etc. or that interferes with or checks a reaction.
noun
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To put poison on or into.
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To influence wrongfully; corrupt.

To poison someone's mind.

verb
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Poisonous or poisoned.
adjective
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A substance that causes injury, illness, or death, especially by chemical means.
noun
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Something destructive or fatal.
noun
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A substance that inhibits another substance or a reaction.

A catalyst poison.

noun
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To kill or harm with poison.
verb
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To put poison on or into.

Poisoning arrows; poisoned the drink.

verb
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To inhibit a substance or reaction.
verb
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Poisonous.
adjective
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A substance that is harmful or lethal to a living organism.

We used a poison to kill the weeds.

noun
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Something that harms a person or thing.

Gossip is a malicious poison.

noun
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(informal) A drink; liquor.

- What's your poison?

- I'll have a glass of whisky.

noun
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To use poison to kill or paralyse somebody.

The assassin poisoned the king.

verb
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To pollute; to cause some part of the environment to become poisonous.

That factory is poisoning the river.

verb
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To cause something to become much worse.

Suspicion will poison their relationship.

He poisoned the mood in the room with his non-stop criticism.

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To cause someone to hate or to have unfair negative opinions.

She's poisoned him against all his old friends.

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Origin of poison

  • Middle English from Old French from Latin pōtiō pōtiōn- drink pō(i)- in Indo-European roots
    From American Heritage Dictionary of the English Language, 5th Edition
  • From Old French poison, from Latin pōtio, pōtiōnis, from pōtō. See also potion and potable.
    From Wiktionary