antimicrobial

adjective

an·​ti·​mi·​cro·​bi·​al ˌan-ti-mī-ˈkrō-bē-əl 

: destroying or inhibiting the growth of microorganisms and especially pathogenic microorganisms

antimicrobial noun

Examples of antimicrobial in a Sentence

Recent Examples on the Web

Strong dosages of antimicrobial drugs and aggressive management of brain swelling can help treat someone who has become infected. — Angel Saunders, PEOPLE, 2 Sep. 2026

Treatment of brain-eating amoebas When a patient has been diagnosed with a brain-eating amoeba, treatment involves a combination of antimicrobial and anti-amoebic medications, including amphotericin B, azithromycin, rifampin and miltefosine. — Melissa Rudy, FOXNews.com, 1 Sep. 2026

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

Word History

First Known Use

1883, in the meaning defined above

Rhymes for antimicrobial

• microbial

Medical Definition

antimicrobial

1 of 2 adjective

an·​ti·​mi·​cro·​bi·​al ˌant-i-mī-ˌkrō-bē-əl 

variants also antimicrobic

-ˈkrō-bik 

: destroying or inhibiting the growth of microorganisms and especially pathogenic microorganisms

antimicrobial

2 of 2 noun

variants also antimicrobic

: an antimicrobial substance