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poisonous substance

Definition:

any substance that causes injury, illness, or death of a living organism

Class:

substance noun (substance and materials)

Plural:

poisonous substances

Original source:

Princeton WordNet

Synonyms:

poison | toxicant

Etymology:

"a deadly potion", from Old French puison (12th century) "a drink", later "a...
(Source: Online Etymology)  [more]

Definition references  (+images)

Collins Dictionary:

toxicant | intoxicant [rare, sense-specific] | poison [synonym, sense-specific] | poisonous [synonym, sense-specific] | toxic [synonym, sense-specific]

a toxic substance; poison | a rare word for "intoxicant" | poisonous; toxic (11 of 219 words, 3 definitions, 1 usage example, pronunciation)

www​.collinsdictionary​.com​/dictionary​/english​/toxicant

Wikipedia:

Toxicant

a type of poison that is made by humans or introduced into the environment by human activity. This is in contrast to a toxin, which is a poison produced naturally by an organism. Some toxicants are specifically developed to fight pests, the so-called ... (43 of 207 words)

en​.wikipedia​.org​/wiki​/Toxicant

Oxford Dictionary:

toxicant

a toxic substance introduced into the environment, e.g. a pesticide (10 of 37 words, pronunciation)

oxforddictionaries​.com​/definition​/english​/toxicant

Merriam-Webster:

toxicant | pesticide [synonym]

a toxic agent ; especially, "pesticide" (6 of 30 words, pronunciation)

www​.merriam-webster​.com​/dictionary​/toxicant

New World Dictionary:

toxicant

poisonous; toxic | a poison; toxic agent (6 of 24 words, 2 definitions, pronunciation)

www​.yourdictionary​.com​/toxicant

Wiktionary:

toxicant | toxicants [plural]

Capable of causing damage by poisoning | A toxic or poisonous substance (11 of 13 words, 2 definitions)

en​.wiktionary​.org​/wiki​/toxicant

American Heritage Dictionary:

toxicant

A poison or poisonous agent. | Poisonous; toxic. (7 of 11 words, 2 definitions, pronunciation)

www​.yourdictionary​.com​/toxicant

Random House Dictionary:

toxicant

poisonous; toxic. | a poison. (4 of 10 words, 2 definitions, pronunciation)

dictionary​.infoplease​.com​/toxicant

Britannica Encyclopedia:

poison [biochemistry] | Atropa belladonna [species] | Datura stramonium [species]

in biochemistry, a substance, natural or synthetic, that causes damage to living tissues and has an injurious or fatal effect on the body, whether ... (24 of 1176 words, 3 images)

www​.britannica​.com​/E​Bchecked​/topic​/466463​/poison

poison [nuclear physics]

in nuclear physics, any material that can easily capture neutrons without subsequently undergoing nuclear fission. Examples of poisons are the ... (20 of 49 words)

www​.britannica​.com​/E​Bchecked​/topic​/466462​/poison

Columbia Encyclopedia:

poison

any agent that may produce chemically an injurious or deadly effect when introduced into the body in sufficient quantity. Some poisons can be deadly ... (24 of 347 words)

www​.infoplease​.com​/ce​6​/sci​/A​0839473​.html

Macmillan British Dictionary:

poison [transitive, verb] | poisoned [past tense] | poisoning [present participle] | poisons [3rd-person singular present] | poison someone's mind against someone

to kill someone or make them very ill by giving them poison ; to put poison into food or drink because you want to kill someone or make them ill | to ... (31 of 126 words, 4 definitions, 5 usage examples, pronunciation)

www​.macmillandictionary​.com​/dictionary​/british​/poison 11

poison | poisons [plural] | name/pick/choose your poison

[countable/uncountable] a substance that can kill you or make you ill if you eat, drink, or breathe it | [countable/uncountable] something that has a ... (23 of 102 words, 3 definitions, 4 usage examples, pronunciation)

www​.macmillandictionary​.com​/dictionary​/british​/poison

Cambridge Dictionary:

poison [entry 1]

a substance that can make people or animals ill or kill them if they eat or drink it (18 of 44 words, 2 usage examples, pronunciation)

dictionary​.cambridge​.org​/dictionary​/british​/poison 1

poison [entry 2]

to kill a person or animal or to make them very ill by giving them poison | to put poison in someone's food or drink | to add dangerous chemicals or ... (29 of 73 words, 3 definitions, 3 usage examples, pronunciation)

dictionary​.cambridge​.org​/dictionary​/british​/poison 2

poison [entry 3]

to spoil a friendship or another situation, by making it very unpleasant (12 of 29 words, 1 usage example, pronunciation)

dictionary​.cambridge​.org​/dictionary​/british​/poison 3

Encarta Dictionary:

toxicant | toxicants [plural]

a toxic substance, especially one used as a pesticide (9 of 20 words, pronunciation)

encarta​.msn​.com​/dictionary 1861721178​/definition​.html  [offline]

Etymology references

Online Etymology:

poison

First use: early 13th century

Origin: "a deadly potion", from Old French puison (12th century) "a drink", later "a potion, poisonous drink" (14th century), from Latin ... (23 of 149 etymology words)

www​.etymonline​.com​/index​.php term=poison

Oxford Dictionary:

poison | poisoned

Origin: Middle English (denoting a harmful medicinal draught): from Old French poison "magic potion", from Latin potio(n-) "potion", related to ... (19 of 22 etymology words)

oxforddictionaries​.com​/definition​/english​/poison

Collins Dictionary:

poison

First use: 13th century

Origin: from Old French puison potion, from Latin pōtiō a drink, esp a poisonous one, from pōtāre to drink

www​.collinsdictionary​.com​/dictionary​/english​/poison

American Heritage Dictionary:

poison | poisoned [past tense] | poisoning [present participle] | poisons [3rd-person singular present]

Origin: Middle English, from Old French, from Latin pōtiō, pōtiōn-, drink; see pōi- in Indo-European roots.

www​.yourdictionary​.com​/poison

Wiktionary:

poison | poisons [plural] | poisoned [past tense] | poisoning [present participle]

Origin: Old French poison, from Latin pōtio, pōtiōnis, from pōtō. See also potion and potable.

en​.wiktionary​.org​/wiki​/poison

New World Dictionary:

poison

Origin: Old French from Latin potio, "potion"

www​.yourdictionary​.com​/poison

Merriam-Webster:

poison [entry 1, noun]

First use: 13th century

Origin: Middle English, from Anglo-French poisun drink, potion, poison, from Latin potion-, potio drink

www​.merriam-webster​.com​/dictionary​/poison

Encarta Dictionary:

poison | poisons [plural] | poisoned [past tense] | poisoning [present participle]

First use: 13th century

Origin: Old French from Latin potion- from potare "to drink"

encarta​.msn​.com​/dictionary 1861738298​/definition​.html  [offline]

Audio references

Wiktionary:

poison | poisons [plural] | poisoned [past tense] | poisoning [present participle]

Audio: North American English pronunciation of "poison"

en​.wiktionary​.org​/wiki​/poison

Collins Dictionary:

poison

Audio: North American English pronunciation of "poison"

www​.collinsdictionary​.com​/dictionary​/english​/poison

Macmillan British Dictionary:

poison [transitive, verb] | poisoned [past tense] | poisoning [present participle] | poisons [3rd-person singular present]

Audio: British English pronunciation of "poison"

www​.macmillandictionary​.com​/dictionary​/british​/poison 11

poison | poisons [plural]

Audio: British English pronunciation of "poison"

www​.macmillandictionary​.com​/dictionary​/british​/poison

Macmillan American Dictionary:

poison [transitive, verb] | poisoned [past tense] | poisoning [present participle] | poisons [3rd-person singular present]

Audio: North American pronunciation of "poison"

www​.macmillandictionary​.com​/dictionary​/american​/poison 11

poison | poisons [plural]

Audio: North American pronunciation of "poison"

www​.macmillandictionary​.com​/dictionary​/american​/poison

Cambridge Dictionary:

poison [entry 2]

Audio 1: British English pronunuciation of "poison"

Audio 2: North American English pronunuciation of "poison"

dictionary​.cambridge​.org​/dictionary​/british​/poison 2

the Free Dictionary:

poison

Audio 1: North American English pronunciation of "poison"

Audio 2: British English pronunciation of "poison"

Audio 3: North American English pronunciation of "poison" by speech synthesizer

www​.thefreedictionary​.com​/poison

Google Dictionary:

poison | poisons [plural] | poisoned [past tense] | poisoning [present participle]

Audio: English pronunciation of "poison"

www​.google​.com​/#hl=en&tbs=dfn​:1&fp=1&q=poison

Merriam-Webster Pronunciation:

poison

Audio: North American pronunciation of "poison"

www​.merriam-webster​.com​/audio​.php file=poison​01 word=poison

YourDictionary Audio:

poison

Audio: North American English pronunciation of "poison" by speech synthesizer

www​.yourdictionary​.com​/poison

freedictionary.org:

Poison

Audio: North American English pronunciation of "Poison" by speech synthesizer

freedictionary​.org​/ Query=poison

Page last updated: 2013-06-26

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