- 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.
Origin of toxin
SynonymsSee more synonyms for toxin on Thesaurus.com
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for toxins
As for the claims that activated charcoal will help purify your body from toxins?
Toxins are carried out of the body through a process called adsorption.
He tells us about the devastating consequences of these toxins entering the watershed.
No one really argues with the massive amount of pollution and toxins.
To begin, they lay down two layers of plastic membranes, protecting the new growth from the toxins below.
Some of these toxins are excreted unoxidized by the kidneys.Alcohol: A Dangerous and Unnecessary Medicine, How and Why
Martha M. Allen
If any toxins were present, the antidote was automatically injected on the site.Deathworld
The great difficulty is to explain how these toxins originate.The Ethics of Medical Homicide and Mutilation
No other physiques can so well withstand the toxins of urban congestion.The Old World in the New
Edward Alsworth Ross
Would not the elimination of these toxins render us less liable to disease?Fletcherism
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for toxins
Online Etymology Dictionary, © 2010 Douglas Harper
- 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.
- 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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.