amoxicillin

A1M3O1X8I1C3I1L1L1I1N1
UK/əˌmɒk.sɪˈsɪl.ɪn/US/əˌmak.sɪˈsɪlːɪn/

noun

A moderate-spectrum, bacteriolytic beta-lactam antibiotic with the formula C₁₆H₁₉N₃O₅S, closely related to ampicillin.

Similar
AmoxilLarotidPolymoxTrimoxAugmentin
OriginEnglish penicillin ← Ancient Greek ὀξῠ́ς (oxŭ́s) ← Proto-Indo-European *h₂eḱ-der.? →
Less commonScrabble 22
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounamoxicillin (countable and uncountable, plural amoxicillins)

plural amoxicillins · alternative UK amoxycillin

  1. countableuncountablemedicineA moderate-spectrum, bacteriolytic beta-lactam antibiotic with the formula C₁₆H₁₉N₃O₅S, closely related to ampicillin.

Synonyms & antonyms

nounan antibiotic; a semisynthetic oral penicillin (trade names Amoxil and Larotid and Polymox and Trimox and Augmentin) used to treat bacterial infections

Similar
AmoxilLarotidPolymoxTrimoxAugmentin
Broader
penicillin
Also see
augmentinclamoxylenhancin

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Egyptianjmn
  2. Ancient GreekᾸ̓́μμων (Ắmmōn)
  3. LatinAmmōn
  4. Latinammoniacus
  5. Englishammonia
  6. Englishamine
  7. Englisham(ino)-
  8. Proto-Indo-European*pes-
  9. Proto-Indo-European*pes-ni-s
  10. Proto-Italic*peznis
  11. Latinpēnis
  12. Latinpēniculus
  13. Latinpēnicillum
  14. Englishp(en)icillin
  15. Englisham(picillin)
  16. Proto-Indo-European*h₂eḱ-der.?
  17. Ancient Greekὀξῠ́ς (oxŭ́s)
  18. English(hydr)oxy
  19. Englishpenicillin
  20. Englishamoxicillin

From am(picillin) + (hydr)oxy + -cillin.

Full word history & related roots →

Translations

Catalan amoxicil·lina
  • amoxicil·linaantibiotic
Chinese Mandarin 阿莫西林
  • 阿莫西林 (āmòxīlín)antibiotic
Czech amoxicilin
  • amoxicilinantibiotic
Finnish amoksisilliini
  • amoksisilliiniantibiotic
French amoxicilline
  • amoxicillineantibiotic
Greek αμοξυκιλλίνη
  • αμοξυκιλλίνη (amoxykillíni)antibiotic
Portuguese amoxicilina
  • amoxicilinaantibiotic
Russian амоксицилли́н
  • амоксицилли́н (amoksicillín)antibiotic
Spanish amoxicilina
  • amoxicilinaantibiotic

Rhymes & wordplay

Rhymes with amoxicillin

penicillinampicillintheophyllinepiperacillinoxacillinticarcillincarbenicillincloxacillindicloxacillinnafcillinbenzylpenicillincarindacillin-cillinmeticillinphenoxymethylpenicillin
All rhymes →
Cite this entry
APA

amoxicillin. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/amoxicillin

MLA

“amoxicillin.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/amoxicillin. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “amoxicillin,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/amoxicillin.

Source: amoxicillin on Wiktionary, CC BY-SA 4.0.