follow Dictionary.com

Your favorite word could be our Word of the Day!

promoter

[pruh-moh-ter] /prəˈmoʊ tər/
noun
1.
a person or thing that promotes, furthers, or encourages.
2.
a person who initiates or takes part in the organizing of a company, development of a project, etc.
3.
a person who organizes and provides financial backing for a sporting event or entertainment.
4.
Chemistry. any substance that in small amounts is capable of increasing the activity of a catalyst.
5.
Also called collector. Metallurgy. a water-repellent reagent enhancing the ability of certain ores to float so that they can be extracted by the flotation process.
6.
Genetics.
  1. a site on a DNA molecule at which RNA polymerase binds and initiates transcription.
  2. a gene sequence that activates transcription.
7.
Obsolete. an informer.
Origin
late Middle English
1400-1450
1400-50; late Middle English; see promote, -er1; replacing earlier promotour < Anglo-French
Related forms
self-promoter, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples from the web for promoter
  • Interesting that you mention those who fear being perceived as a shameless self promoter.
  • He was also a perpetual self-promoter who took flack for embellishing his exploits and hyping his accomplishments.
  • She was an incredible self-promoter, endlessly self-important.
  • The ironic thing is that the anti-vaccine group could be viewed as also blindly following people who promoter their agenda.
  • She was always a brilliant performer, a sedulous promoter of her own myth.
  • He knew or could get to every mercenary, adventurer, or promoter who had ever cast a shadow on that continent.
  • He was amazing in so many ways, especially as a promoter.
  • The music promoter turned digital entrepreneur ought to know.
  • They also had the opposite effect from methylated cytosines found in promoter regions.
  • All genes have them, but it is possible to replace a gene's natural promoter with another that is more amenable to manipulation.
British Dictionary definitions for promoter

promoter

/prəˈməʊtə/
noun
1.
a person or thing that promotes
2.
a person who helps to organize, develop, or finance an undertaking
3.
a person who organizes and finances a sporting event, esp a boxing match
4.
(chem) a substance added in small amounts to a catalyst to increase its activity
5.
(genetics) a sequence of nucleotides, associated with a structural gene, that must bind with messenger RNA polymerase before transcription can proceed
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
Cite This Source
Word Origin and History for promoter
n.

late 14c., "one who promotes" (the interest of someone), "supporter," agent noun from promote, and also from Old French promoteur and directly from Medieval Latin promotor. Specific financial sense of "one who leads in forming a company" is from 1876; sense of "one who organizes sporting or entertainment events" is attested from 1936.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
promoter in Medicine

promoter pro·mot·er (prə-mō'tər)
n.

  1. A substance that increases the activity of a catalyst.

  2. A DNA molecule to which RNA polymerase binds, initiating the transcription of mRNA.

  3. A chemical that may promote carcinogenicity or mutagenicity.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
promoter in Science
promoter
  (prə-mō'tər)   
The region of an operon that acts as the initial binding site for RNA polymerase.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Encyclopedia Article for promoter

in chemistry, substance added to a solid catalyst to improve its performance in a chemical reaction. By itself the promoter has little or no catalytic effect. Some promoters interact with active components of catalysts and thereby alter their chemical effect on the catalyzed substance. The interaction may cause changes in the electronic or crystal structures of the active solid component. Commonly used promoters are metallic ions incorporated into metals and metallic oxide catalysts, reducing and oxidizing gases or liquids, and acids and bases added during the reaction or to the catalysts before being used.

Learn more about promoter with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source

Word of the Day

Difficulty index for promoter

Many English speakers likely know this word

Word Value for promoter

12
14
Scrabble Words With Friends

Quotes with promoter

Nearby words for promoter