inhibitor
noun
in·hib·i·tor
in-ˈhi-bə-tər 
: 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 most common classes of antihypertensive drugs are angiotensin-converting enzyme (ACE) inhibitors and angiotensin receptor blockers (ARBs).
—
Merve Ceylan, Health, 8 July 2025
Using mice that had the genetic mutation that causes overactive LRRK2 and also had symptoms consistent with early Parkinson’s disease, the scientists tried feeding them the inhibitor for two weeks.
—Khloe Quill, FOXNews.com, 7 July 2025
Trials investigating the use of plasmin inhibitors in combination with CAR-T or T-cell therapies for solid tumors may be on the horizon.
—Daniella Gray, MSNBC Newsweek, 7 July 2025
Type 2 diabetes medications include metformin, sulfonylureas, alpha-glucosidase inhibitors, and other medications that change the way your body uses insulin and glucose.
—Kathleen Daly, Verywell Health, 30 June 2025
See All Example Sentences for inhibitor
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Merve Ceylan, Health, 8 July 2025
Using mice that had the genetic mutation that causes overactive LRRK2 and also had symptoms consistent with early Parkinson’s disease, the scientists tried feeding them the inhibitor for two weeks.
—Khloe Quill, FOXNews.com, 7 July 2025
Trials investigating the use of plasmin inhibitors in combination with CAR-T or T-cell therapies for solid tumors may be on the horizon.
—Daniella Gray, MSNBC Newsweek, 7 July 2025
Type 2 diabetes medications include metformin, sulfonylureas, alpha-glucosidase inhibitors, and other medications that change the way your body uses insulin and glucose.
—Kathleen Daly, Verywell Health, 30 June 2025
See All Example Sentences for inhibitor
Cite this Entry
“Inhibitor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inhibitor. Accessed 20 Jul. 2025.
Copy CitationMedical Definition
inhibitor
noun
in·hib·i·tor
in-ˈhib-ət-ər
: 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share