promoter
noun
pro·mot·er
prə-ˈmō-tər 
1
: one that promotes
especially
: one who assumes the financial responsibilities of a sporting event (such as a boxing match) including contracting with the principals, renting the site, and collecting gate receipts
2
obsolete
: prosecutor
3
: a substance that in very small amounts is able to increase the activity of a catalyst
4
: a binding site in a DNA chain at which RNA polymerase binds to initiate transcription of messenger RNA by one or more nearby structural genes
Examples of promoter in a Sentence
a promoter of greater understanding and cooperation among churches
Recent Examples on the Web
Filming Italy — Los Angeles is headed by marketing guru and longtime Italian industry promoter Tiziana Rocca, who also leads the Taormina Film Festival.
—
Nick Vivarelli, Variety, 3 Feb. 2026
Sequence analysis 5′ of the transcriptional site indicated a TATA-less promoter with possible cis-acting motifs that may regulate C3a receptor gene expression.
—Kirstin R.w. Matthews, STAT, 3 Feb. 2026
The venue had been rented by an outside promoter who booked TwoSet Violin to perform here.
—George Varga, San Diego Union-Tribune, 1 Feb. 2026
Her promoter had her food ready.
—Howard Cohen, Miami Herald, 1 Feb. 2026
See All Example Sentences for promoter
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Nick Vivarelli, Variety, 3 Feb. 2026
Sequence analysis 5′ of the transcriptional site indicated a TATA-less promoter with possible cis-acting motifs that may regulate C3a receptor gene expression.
—Kirstin R.w. Matthews, STAT, 3 Feb. 2026
The venue had been rented by an outside promoter who booked TwoSet Violin to perform here.
—George Varga, San Diego Union-Tribune, 1 Feb. 2026
Her promoter had her food ready.
—Howard Cohen, Miami Herald, 1 Feb. 2026
See All Example Sentences for promoter
Cite this Entry
“Promoter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/promoter. Accessed 5 Feb. 2026.
Copy CitationKids Definition
promoter
noun
pro·mot·er
prə-ˈmōt-ər
: a person who promotes
especially
: one who finances a sporting event
a promoter of prizefights
Medical Definition
promoter
noun
pro·mot·er
-ˈmōt-ər
1
: a substance that in very small amounts is able to increase the activity of a catalyst
2
: a binding site in a DNA chain at which RNA polymerase binds to initiate transcription of messenger RNA by one or more nearby structural genes
3
: a chemical believed to promote carcinogenicity or mutagenicity
Legal Definition
promoter
noun
pro·mot·er
: one who alone or with others actively participates in the formation of a business or venture
promoters owe a fiduciary duty to the corporation they are promoting—R. C. Clark
R. C. ClarkLove words? Need even more definitions?
Merriam-Webster unabridged
