inhibitor

noun
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

Are or may be pregnant, have osteoporosis, have severe liver disease, or take medicines known as strong OATP1B1 inhibitors, such as cyclosporine or gemfibrozil. Vogue, "Rosalía Just Kickstarted Festival Season’s Unlikeliest Trend," 8 July 2019 For example, galantamine, an enzyme inhibitor that is typically used to treat Alzheimer’s disease, has been shown to significantly increase lucid dream induction rates when used in conjunction with the WBTB and MILD techniques. Achilleas Pavlou, Quartz, "A lucid dream researcher’s tips for controlling your dreams," 29 June 2019 All participants were given standard hormone therapy (an aromatase inhibitor or tamoxifen) as well as a medication that shuts down the ovaries' production of estrogen. Samantha Lauriello, Health.com, "A New Breast Cancer Treatment Can Extend the Lives of Younger Patients, Study Finds," 4 June 2019 Are or may be pregnant, have osteoporosis, have severe liver disease, or take medicines known as strong OATP1B1 inhibitors, such as cyclosporine or gemfibrozil. Glamour, "The Biggest Swimwear Color Trends for Summer 2019," 25 May 2019 But clinical trials for three of these BACE1 inhibitors ended with not-so-promising results. Lacy Schley, Discover Magazine, "State of Science: A Roller Coaster Year for Alzheimer's Treatment," 1 Jan. 2019 One of the chemicals serves as an activator that expresses a unique characteristic, such as the pigmentation of a spot or stripe, while the other acts as an inhibitor, disrupting the activator’s expression. Jennifer Ouellette, Quanta Magazine, "A Math Theory for Why People Hallucinate," 30 July 2018 Kisqali, which is taken as a tablet, is one of a few newer breast cancer drugs on the market called CDK4/6 inhibitors, a type of drug that works by blocking two proteins that help cancer cells grow and divide. Samantha Lauriello, Health.com, "A New Breast Cancer Treatment Can Extend the Lives of Younger Patients, Study Finds," 4 June 2019 The immune-activating drug was a checkpoint inhibitor called pembrolizumab, or Keytruda, made by Merck, which paid for the study. Denise Grady, BostonGlobe.com, "Lung cancer patients live longer with immune therapy," 17 Apr. 2018

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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Last Updated

14 Jul 2019

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Time Traveler for inhibitor

The first known use of inhibitor was circa 1611

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More Definitions for inhibitor

inhibitor

noun
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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More from Merriam-Webster on inhibitor

Nglish: Translation of inhibitor for Spanish Speakers

Britannica English: Translation of inhibitor for Arabic Speakers

Britannica.com: Encyclopedia article about inhibitor

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