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toxin
8 dictionary results for: toxin
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
[tok-sin] 
tox⋅in
[tok-sin] 
sɪn –noun
| any poison produced by an organism, characterized by antigenicity in certain animals and high molecular weight, and including the bacterial toxins that are the causative agents of tetanus, diphtheria, etc., and such plant and animal toxins as ricin and snake venom. |
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
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American Heritage Dictionary - Cite This Source - Share This
| tox·in
(tŏk'sĭn) Pronunciation Key
n. A poisonous substance, especially a protein, that is produced by living cells or organisms and is capable of causing disease when introduced into the body tissues but is often also capable of inducing neutralizing antibodies or antitoxins. |
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Online Etymology Dictionary - Cite This Source - Share This
toxin
toxin
"organic poison," 1886, from L. toxicum "poison" (see toxic).
Online Etymology Dictionary, © 2001 Douglas Harper
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WordNet - Cite This Source - Share This
| toxin | |
noun | |
| a poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species |
WordNet® 3.0, © 2006 by Princeton University.
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The American Heritage Science Dictionary - Cite This Source - Share This
| toxin
(tŏk'sĭn) Pronunciation Key
A poisonous substance, especially one produced by a living organism. Toxins can be products or byproducts of ordinary metabolism, such as lactic acid, and they must be broken down or excreted before building up to dangerous levels. Toxins can facilitate survival, as with snake venom that kills or immobilizes prey, or cyanide produced by some plants as a defense against being eaten. Bacterial toxins can sometimes be neutralized with antitoxins. Compare antitoxin.
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The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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American Heritage Stedman's Medical Dictionary - Cite This Source - Share This
toxin tox·in (tŏk'sĭn)
n.
A poisonous substance, especially a protein, that is produced by living cells or organisms and is capable of causing disease when introduced into the body tissues but is often also capable of inducing neutralizing antibodies or antitoxins.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Merriam-Webster's Medical Dictionary - Cite This Source - Share This
Main Entry: tox·in
Pronunciation: 'täk-s&n
Function: noun
: a colloidal proteinaceous poisonous substance that is a specific product of themetabolic activities of a living organism and is usually very unstable, notably toxic when introduced into the tissues, and typically capable of inducing antibody formation —seeANTITOXIN, ENDOTOXIN, EXOTOXIN
Main Entry: tox·in
Pronunciation: 'täk-s&n
Function: noun
: a colloidal proteinaceous poisonous substance that is a specific product of themetabolic activities of a living organism and is usually very unstable, notably toxic when introduced into the tissues, and typically capable of inducing antibody formation —see
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Webster's Revised Unabridged Dictionary - Cite This Source - Share This
Toxin
Tox"in\, Toxine \Tox"ine\, n. [Gr. toxiko`n. See Toxic. ] A poisonous product formed by pathogenic bacteria , as a toxic proteid or poisonous ptomaine.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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