in·​hib·​i·​tor | \ in-ˈhi-bə-tər How to pronounce inhibitor (audio) \

Definition of inhibitor

: one that inhibits: such as
a : an agent that slows or interferes with a chemical action
b : a substance that reduces or suppresses the activity of another substance (such as an enzyme)

Examples of inhibitor in a Sentence

Recent Examples on the Web Rebels also revealed that Rex's former clone comrades, Wolffe and Gregor, avoided being part of Order 66 by having their inhibitor chips removed at Rex's urging. Lauren Morgan,, "Everything you need to know from Star Wars: The Clone Wars before watching The Bad Batch," 30 Apr. 2021 The Journal’s Opinion page is a huge inhibitor, not only in terms of growing the paper’s audience but in recruiting young, talented journalists. Alex Shephard, The New Republic, "Don’t Change, Wall Street Journal," 13 Apr. 2021 Immunologist Laurence Zitvogel of the Gustave Roussy Institute in France recently studied mice with skin, kidney, or lung cancers receiving a drug known as a checkpoint inhibitor that helps the immune system’s T cells kill tumors. Jocelyn Kaiser, Science | AAAS, "Special diets might boost the power of drugs to vanquish cancers," 1 Apr. 2021 Caviar Eye Extraordinaire is enriched with the breakthrough illuminating molecule Lumidose - the most potent inhibitor of tyrosinase, the enzyme responsible for the formation of melanin. Joseph Deacetis, Forbes, "Understanding Skincare That Will Make Your Feel Good Inside And Out.," 1 Mar. 2021 Researchers at the drug giant Pfizer are pursuing an inhibitor that may work better because it is designed to target NSP5, a protease that is specific to SARS-CoV-2 and its coronavirus relatives. Robert F. Service, Science | AAAS, "Researchers race to develop antiviral weapons to fight the pandemic coronavirus," 11 Mar. 2021 For instance, if you are diagnosed with ovarian cancer and have a BRCA1 or BRCA2 mutation, a PARP inhibitor might be helpful. Korin Miller, Good Housekeeping, "What You Should Know About Your BRCA Status And Ovarian Cancer Risk," 9 Feb. 2021 This new research involved the identification of specific inhibitor molecules that would make radiation more effective in fighting brain cancer. Linda Gandee, cleveland, "Prayers From Maria has raised more than $7 million for cancer research," 25 Jan. 2021 One reason is fewer people are smoking, and improved treatments like epidermal growth-factor receptor tyrosine-kinase inhibitor are able to target non-small cell lung cancer mutations. The Editorial Board, WSJ, "The Good News on Cancer," 14 Jan. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'inhibitor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of inhibitor

circa 1611, in the meaning defined above

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Time Traveler for inhibitor

Time Traveler

The first known use of inhibitor was circa 1611

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Statistics for inhibitor

Last Updated

7 May 2021

Cite this Entry

“Inhibitor.” Dictionary, Merriam-Webster, Accessed 9 May. 2021.

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More Definitions for inhibitor


in·​hib·​i·​tor | \ in-ˈhib-ət-ər How to pronounce inhibitor (audio) \

Medical Definition of inhibitor

: one that inhibits: as
a : an agent that slows or interferes with a chemical reaction
b : a substance that reduces the activity of another substance (as an enzyme)
c : a gene that checks the normal effect of another nonallelic gene when both are present

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Comments on inhibitor

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