mu·ta·gen

[myoo-tuh-juhn, -jen]
noun
a substance or preparation capable of inducing mutation.

Origin:
1945–50; muta(tion) + -gen

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
mutagen (ˈmjuːtədʒən) [Click for IPA pronunciation guide]
 
n
a substance or agent that can induce genetic mutation
 
[C20: from mutation + -gen]
 
mutagenic
 
adj
 
mutagen'icity
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Mutagen is always a great word to know.
So is codon. Does it mean:
a triplet of adjacent nucleotides in the messenger RNA chain that codes for a specific amino acid in the synthesis of a protein molecule.
the final stage of meiosis or mitosis, in which the separated chromosomes reach the opposite poles of the dividing cell and the nuclei of the daughter cells form around the two sets of chromosomes.
Etymonline
Word Origin & History

mutagen
1946, from mutation + -gen, from Gk. -genes "formation, creation" (see genus). Related: Mutagenic.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

mutagen mu·ta·gen (my&oomacr;'tə-jən, -jěn')
n.
An agent, such as ultraviolet light or a radioactive element, that can induce or increase the frequency of mutation in an organism.


mu'ta·gen'ic adj.
mu'ta·gen'i·cal·ly adv.
mu'ta·ge·nic'i·ty (-jə-nĭs'ĭ-tē) n.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Cultural Dictionary
mutagen [(myooh-tuh-juhn, myooh-tuh-jen)]

Something that causes mutations in living things. Mutagens include chemicals, such as drugs or toxins, and radiation.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences from the web
Alcohol is an example of a chemical carcinogen that is not a mutagen.
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