poison

We used a poison to kill the weeds.

A substance that is harmful or lethal to a living organism when ingested.

Gossip is a malicious poison.

Awaie with the Rebels ſuffer them not to ſpeake,
His words are poyſon in the eares of the people, […]

1593, anonymous author, The Life and Death of Iacke Straw […], Act IV:

(figuratively) Anything harmful to a person or thing.

— What's your poison?

— I'll have a glass of whiskey.

(informal, idiomatic) An alcoholic drink. (Mainly in the phrases "name your poison" and "what's your poison?")

The temperature effect of poisons. The influence of poison on the catalyst can be different with the change of reaction conditions.

2013, Huazhang Liu, Ammonia Synthesis Catalysts: Innovation and Practice, page 693:

(chemistry) Any substance that inhibits catalytic activity.

en-noun

poison (countable and uncountable, plural poisons)

From Middle English poisoun, poyson, poysone, puyson, puisun, from Old French poison, poisun, from Latin pōtiōnem (“drink, a draught, a poisonous draught, a potion”), from pōtō (“I drink”). See also potion and potable (from the same root). Mostly displaced native Old English ātor (see atter).


poison

The assassin poisoned the king.

(transitive) To use poison to kill or paralyse (somebody).

That factory is poisoning the river.

(transitive) To pollute; to cause to become poisonous.

Suspicion will poison their relationship.

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

(transitive) To cause to become much worse.

She's poisoned him against all his old friends.

(transitive) To cause (someone) to hate or to have unfair negative opinions.

(chemistry) To inhibit the catalytic activity of.

In this technique, the hacker poisons the cache to launch malware into Web pages.

2013, Ronald L. Mendell, Investigating Information-based Crimes, page 93:

(transitive, computing) To place false or malicious data into (a cache, etc.) as part of an exploit.

en-verb

poison (third-person singular simple present poisons, present participle poisoning, simple past and past participle poisoned)

poisons (present singular third-person)
poisoning (participle present)
poisoned (participle past)
poisoned (past)


poison

Poisson sans boisson est poison.

→ Walloon: pwezon m

From Old French poison f, inherited from Latin pōtiōnem f. Doublet of potion f, a borrowing.


poison

Thessala tranpre sa poison

fro-noun

poison oblique singular, f (oblique plural poisons, nominative singular poison, nominative plural poisons)

poison oblique singular or (canonical feminine)
poisons (oblique plural)
poison (nominative singular)
poisons (nominative plural)
peissun (alternative)
peyson (alternative)
poisoun (alternative)
pouson (alternative)
poyson (alternative)
poysoun (alternative)
poysun (alternative)
puison (alternative)
puisson (alternative)
puisun (alternative)
puson (alternative)
pusoun (alternative)
pusoune (alternative)
pusun (alternative)

Middle French: poison ?

French: poison m
→ Walloon: pwezon m

→ Dutch: poisoen

desctree

→ Middle English: poisoun, poison, puison, poisen, puyson, poysone, puisun
English: poison
Scots: pushion

From Latin pōtiōnem, accusative singular of pōtio f.


poison

fro-noun

poison oblique singular, m (oblique plural poisons, nominative singular poisons, nominative plural poison)

poison oblique singular or (canonical masculine)
poisons (oblique plural)
poisons (nominative singular)
poison (nominative plural)
peissun (alternative)
peyson (alternative)
poisoun (alternative)
pouson (alternative)
poyson (alternative)
poysoun (alternative)
poysun (alternative)
puison (alternative)
puisson (alternative)
puisun (alternative)
puson (alternative)
pusoun (alternative)
pusoune (alternative)
pusun (alternative)


poison

Borrowed from French poison. Doublet of poción.