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toxin

Definition:

a poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species

Class:

substance noun (substance and materials)

Related to:

toxic

Plural:

toxins

Original source:

Princeton WordNet

Etymology:

"organic poison", from Latin toxicum "poison".
(Source: Online Etymology)  [more]

Definition references

Wikipedia:

Toxin

a poisonous substance produced within living cells or organisms; man-made substances created by artificial processes are thus excluded. The term was first used by organic chemist Ludwig Brieger. For a toxic substance not produced within living... (36 of 2160 words, 1 image)

en​.wikipedia​.org​/wiki​/Toxin

Toxin (disambiguation)

a poisonous substance. Toxin may also refer to: Toxin (novel) is a 1998 novel by Robin Cook | Toxin (comics), a fictional character by Marvel Comics universe, "grandson" of Venom and ally of Spider-Man | Tocsin, a form of alarm | Toxicity... (39 of 92 words, 6 definitions)

en​.wikipedia​.org​/wiki​/Toxin (disambiguation)

Collins Dictionary:

toxin

any of various poisonous substances produced by microorganisms that ... | any other poisonous substance of plant or animal origin (19 of 373 words, 2 definitions, 7 usage examples, pronunciation)

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

Britannica Encyclopedia:

toxin [biochemistry]

any substance poisonous to an organism. The term is sometimes restricted to poisons spontaneously produced by living organisms. Besides the poisons ... (21 of 221 words)

www​.britannica​.com​/E​Bchecked​/topic​/601221​/toxin

Columbia Encyclopedia:

toxin

poison produced by living organisms. Toxins are classified as either exotoxins or endotoxins. Exotoxins are a diverse group of soluble proteins ... (21 of 180 words)

www​.infoplease​.com​/ce​6​/sci​/A​0849190​.html

Merriam-Webster:

toxin | bane [synonym] | toxic [synonym] | poison [synonym] | venom [synonym] | cancer [similar] | contagion [similar] | disease [similar] | virus [similar] | ...

a poisonous substance that is a specific product of the metabolic activities of a living organism and is usually very unstable, notably toxic when ... (24 of 117 words, 1 usage example, pronunciation)

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

Oxford Dictionary:

toxin

a poison of plant or animal origin, especially one produced by or derived from microorganisms and acting as an antigen in the body (23 of 57 words, pronunciation)

oxforddictionaries​.com​/definition​/english​/toxin

New World Dictionary:

toxin

any of various poisonous compounds produced by some microorganisms and causing certain diseases | any of various similar poisons, related to proteins, ... (21 of 53 words, 2 definitions, pronunciation)

www​.yourdictionary​.com​/toxin

Random House Dictionary:

toxin

any poison produced by an organism, characterized by antigenicity in certain animals and high molecular weight, and including the bacterial toxins ... (21 of 52 words, pronunciation)

dictionary​.infoplease​.com​/toxin

American Heritage Dictionary:

toxin

A poisonous substance, especially a protein, that is produced by living cells or organisms and is capable of causing disease when introduced into the ... (24 of 40 words, pronunciation)

www​.yourdictionary​.com​/toxin

Macmillan British Dictionary:

toxin [countable] | toxins [plural]

a poisonous substance that causes disease (6 of 31 words, pronunciation)

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

Cambridge Dictionary:

toxin

a poisonous substance, especially one which is produced by bacteria and which causes disease (14 of 19 words, pronunciations)

dictionary​.cambridge​.org​/dictionary​/british​/toxin

Wiktionary:

toxin | toxins [plural]

A toxic or poisonous substance produced by the biological processes of biological organisms. (13 of 19 words)

en​.wiktionary​.org​/wiki​/toxin

Encarta Dictionary:

toxin | toxins [plural]

a poison produced by a living organism | a substance that accumulates in the body and causes it harm (18 of 49 words, 2 definitions, pronunciation)

encarta​.msn​.com​/dictionary 1861721186​/definition​.html  [offline]

Etymology references

Online Etymology:

toxin

First use: 1886

Origin: "organic poison", from Latin toxicum "poison".

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

Oxford Dictionary:

toxin

First use: late 19th century

Origin: "toxic" + "-in1"

oxforddictionaries​.com​/definition​/english​/toxin

toxic | toxics

First use: mid 17th century

Origin: medieval Latin toxicus "poisoned", from Latin toxicum "poison", from Greek toxikon (pharmakon) "(poison for) arrows", from toxon "bow"

oxforddictionaries​.com​/definition​/english​/toxic

-in [entry 1, chemistry]

Origin: alteration of "-ine4"

oxforddictionaries​.com​/definition​/english​/--in

Merriam-Webster:

toxin

First use: 1886

Origin: International Scientific Vocabulary

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

New World Dictionary:

toxin

Origin: toxic + "-in"

www​.yourdictionary​.com​/toxin

-in

Origin: French -in, -ine from Latin -inus, masculine, ... | French from Latin -ina, suffix of feminine abstract nouns | arbitrary use ... (19 of 43 etymology words)

www​.yourdictionary​.com​/in-suffix

Wiktionary:

toxin | toxins [plural]

Origin: Latin toxicum.

en​.wiktionary​.org​/wiki​/toxin

Encarta Dictionary:

toxin | toxics [plural]

First use: Mid-17th century

Origin: medieval Latin toxicus "poisoned" from Greek toxikos "of the bow" (Greek toxikon pharmakon meant "poison for smearing arrows")

encarta​.msn​.com​/dictionary 1861721186​/definition​.html  [offline]

Audio references

Collins Dictionary:

toxin

Audio: North American English pronunciation of "toxin"

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

Macmillan British Dictionary:

toxin [countable] | toxins [plural]

Audio: British English pronunciation of "toxin"

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

Macmillan American Dictionary:

toxin [countable] | toxins [plural]

Audio: North American pronunciation of "toxin"

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

Cambridge Dictionary:

toxin

Audio 1: British English pronunuciation of "toxin"

Audio 2: North American English pronunuciation of "toxin"

dictionary​.cambridge​.org​/dictionary​/british​/toxin

the Free Dictionary:

toxin

Audio 1: North American English pronunciation of "toxin"

Audio 2: British English pronunciation of "toxin"

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

www​.thefreedictionary​.com​/toxin

Google Dictionary:

toxin | toxins [plural]

Audio: English pronunciation of "toxin"

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

Merriam-Webster Pronunciation:

toxin

Audio: North American pronunciation of "toxin"

www​.merriam-webster​.com​/audio​.php file=toxin​001 word=toxin

YourDictionary Audio:

toxin

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

www​.yourdictionary​.com​/toxin

Page last updated: 2013-06-26

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