amoxicillin

noun

amox·​i·​cil·​lin ə-ˌmäk-sē-ˈsi-lən 

: a semisynthetic penicillin C₁₆H₁₉N₃O₅S derived from ampicillin

Examples of amoxicillin in a Sentence

Recent Examples on the Web

In this method, patients take a low dose of amoxicillin and are observed for about 30 minutes to see whether any reaction occurs. —Elizabeth W. Covington, The Conversation, 31 July 2025

In the event that a patient develops Lyme, the disease typically responds well to a course of antibiotics, which may include doxycycline, amoxicillin or cefuroxime, according to experts. —Amy McGorry, FOXNews.com, 29 July 2025

Like amoxicillin, heparin is one of those foundational medications that make modern medicine possible. —Thomas J. Bollyky, Foreign Affairs, 22 July 2025

The facility, built in the 1970s, used to produce enough amoxicillin for the whole country at the time. —John Liu, CNN Money, 3 June 2025

Word History

Etymology

am(ino)+ ox- + (pen)icillin

First Known Use

1971, in the meaning defined above

Rhymes for amoxicillin

• carbenicillin
• haematoxylin
• ampicillin
• methicillin
• penicillin
• pyroxylin
• millon
• villain
• vanillin

Medical Definition

amoxicillin

noun

amox·​i·​cil·​lin

variants or British amoxycillin

ə-ˌmäk-sē-ˈsil-ən 

: a semisynthetic penicillin C₁₆H₁₉N₃O₅S derived from ampicillin see amoxil, augmentin, larotid, trimox