antimicrobial

adjective

an·​ti·​mi·​cro·​bi·​al ˌan-ti-mī-ˈkrō-bē-əl How to pronounce antimicrobial (audio)
: destroying or inhibiting the growth of microorganisms and especially pathogenic microorganisms
antimicrobial noun

Examples of antimicrobial in a Sentence

Recent Examples on the Web
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.
Balancing antibiotics’ pros and cons Scientists now know that it’s not shortened courses of antibiotics that can promote antimicrobial resistance, but that antibiotic exposure itself creates selective pressure for resistant bacteria to emerge. — Amy J. Mathers, The Conversation, 28 Aug. 2026 Pure Copper Charm, which comes in two adorable shapes, a heart or star, is a natural antimicrobial and releases purifying trace copper ions into vase water. — Stephanie Osmanski, Better Homes & Gardens, 21 Aug. 2026 Compounds in these plants have anti-inflammatory or antimicrobial effects, which could boost your immune system. — Carrie Madormo, HEALTH, 19 Aug. 2026 Quinlan points out that citrus rinds themselves have antimicrobial properties. — Lynn Andriani, Martha Stewart, 19 Aug. 2026 See All Example Sentences for antimicrobial

Word History

First Known Use

1883, in the meaning defined above

Time Traveler
The first known use of antimicrobial was in 1883

Rhymes for antimicrobial

See All Rhymes for antimicrobial

Browse Nearby Words

antimetastatic
antimicrobial
antimigraine
See all Nearby Words

Cite this Entry

“Antimicrobial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antimicrobial. Accessed 1 Sep. 2026.

Copy Citation

Medical Definition

antimicrobial

1 of 2 adjective
an·​ti·​mi·​cro·​bi·​al ˌant-i-mī-ˌkrō-bē-əl How to pronounce antimicrobial (audio)
variants also antimicrobic
-ˈkrō-bik How to pronounce antimicrobial (audio)
: destroying or inhibiting the growth of microorganisms and especially pathogenic microorganisms

antimicrobial

2 of 2 noun
variants also antimicrobic
: an antimicrobial substance
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?

Why does English have so many silent letters?

7 Pairs of Commonly Confused Words
See More

Popular in Wordplay

See More

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Even More Words That Sound Like Insults But Aren't

Even More Bird Names that Sound Like Insults (and Sometimes Are)

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
skateboard-dog-hat
Wordmaxxing Slang Quiz Give your vocabulary a glow up by getting sendy w...
See All