antibacterial

adjective

an·​ti·​bac·​te·​ri·​al ˌan-tē-bak-ˈtir-ē-əl  ˌan-ˌtī- 

: directed or effective against bacteria

antibacterial soap

an antibacterial drug

antibacterial noun

In an effort to develop new antifungals, scientists are boning up on previous research on antibacterials.

—Ellen Licking

Examples of antibacterial in a Sentence

Recent Examples on the Web

Linen fibers, which are derived from the flax plant, are naturally hypoallergenic, absorbent, and antibacterial, so all of us also looked for sheets without synthetic fibers to suit sleepers with sensitive skin. —Nashia Baker, Architectural Digest, 6 June 2026

Research has found a link between mouthwash use and higher blood pressure, but only with frequent use or stronger antibacterial formulations. —Laura Bradley, Health, 3 June 2026

In India, Shruti Chand founded Naarica in 2023 to manufacture antibacterial and reusable menstrual underwear that can save up to 200 disposable pads over the garment’s lifespan of three years. —Zinnia Lee, Forbes.com, 27 May 2026

If applied topically, honey has some modest antibacterial and anti-inflammatory properties. —Scott Lafee, San Diego Union-Tribune, 19 May 2026

Word History

First Known Use

1879, in the meaning defined above

Rhymes for antibacterial

• immaterial
• magisterial
• managerial
• ministerial
• nonmaterial
• presbyterial
• arterial
• bacterial
• ethereal
• funereal
• imperial
• material

Kids Definition

antibacterial

adjective

an·​ti·​bac·​te·​ri·​al

ˌant-ē-ˌbak-ˈtir-ē-əl, 

ˌan-ˌtī-ˌbak-

: directed or effective against bacteria

antibacterial soap

Medical Definition

antibacterial

1 of 2 adjective

an·​ti·​bac·​te·​ri·​al ˌant-i-bak-ˈtir-ē-əl  ˌan-ˌtī- 

: directed or effective against bacteria

antibacterial

2 of 2 noun

: an antibacterial agent