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

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 The immune-activating drug was a checkpoint inhibitor called pembrolizumab, or Keytruda, made by Merck, which paid for the study. Denise Grady, New York Times, "Lung Cancer Patients Live Longer With Immune Therapy," 16 Apr. 2018 Sales of Tesaro’s cancer drug Zejula, part of a drug class called PARP inhibitors, reached $166 million in the first three quarters of the year. Charley Grant, WSJ, "Glaxo Reignites Biotech’s Bull Run," 3 Dec. 2018 The other two became tumor-free after the vaccine was paired with a checkpoint inhibitor. Sam Spengler, Smithsonian, "Where We Are in the Hunt for a Cancer Vaccine," 22 Mar. 2018 Safe and effective Finding a new and seemingly safe topoisomerase inhibitor left the path clear for Phase 2 clinical trials: a test of whether zoliflodacin worked safely in 141 patients with gonorrhea. Cathleen O'grady, Ars Technica, "New anti-gonorrhea drug called “metal as f–k”," 15 Nov. 2018 Only if Ezetimibe doesn’t work should patients be prescribed a PCSK9 inhibitor—a class of drugs shown to be highly effective in lowering the cholesterol of patients whose LDL is 100 or more. Betsy Mckay, WSJ, "New Guidelines for Treating High Cholesterol Take a Personal Approach," 10 Nov. 2018 The warning pertains to a class of medicines called SGLT2 inhibitors, first approved in 2013 to lower blood sugar in adults with type 2 diabetes. Fox News, "FDA warns of serious genital infection linked to certain diabetes drugs," 30 Aug. 2018 Zejula is one of a new class of drugs known as PARP inhibitors, which have increased survival rates for women with recurrent ovarian cancer. Kimberly Chin, WSJ, "GlaxoSmithKline to Acquire Tesaro for $4.16 Billion," 3 Dec. 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

21 Apr 2019

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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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