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suppressant

American

[suh-pres-uhnt] / səˈprɛs ənt /

noun

a substance that suppresses an undesirable action or condition.

an appetite suppressant.

suppressant British

/ səˈprɛsənt /

adjective

tending to suppress or restrain an action or condition

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

a suppressant drug or agent

a cough suppressant

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of suppressant

1940–45; suppress ( def. ) + -ant

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Both drugs work as an appetite suppressant by mimicking a hormone called GLP-1, which makes people feel fuller.

From BBC • Feb. 22, 2026

The Aviation Safety Network, which tracks airline accidents, published photos of the damaged plane in a grassy field surrounded by fire suppressant foam on X, formerly known as Twitter.

From Seattle Times • May 9, 2024

Surprisingly, the IL-10 molecule was traditionally viewed as an immune suppressant.

From Science Daily • Jan. 4, 2024

Researchers from the Food and Drug Administration authored an article in the journal Pediatrics that warns parents against giving young children cough suppressant medications.

From Washington Post • Dec. 15, 2022

CCK also travels to the brain, where it can act as a hunger suppressant.

From Textbooks • Jun. 19, 2013

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023