noun · 2 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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Received-Pronunciation:/əʊˈmɛp.ɹə.zəʊl/
General-American:/oʊˈmɛp.ɹəˌzoʊl/
General-American:Recorded audio is listed in the source snapshot.
1
noun
Meaning 1
A substituted benzimidazole (trademark Losec, Prilosec) which is a proton pump inhibitor and inhibits secretion of gastric acid, being given orally in the treatment of ulcers and gastroesophageal reflux; 5-methoxy-2-(4-methoxy-3,5-dimethyl-2-pyridylmethylsulfinyl)benzimidazole, C17H19N3O3S.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: medicine, pharmacology, sciences
Examples
2001: The first successful drug of this class was omeprazole (sold under the trade name Losec®), and it helped to change the medium-sized Swedish pharmaceutical company Astra, which discovered it, into a major player in the pharmaceutical industry. — Leslie Iversen, Drugs: A Very Short Introduction (Oxford 2001, p. 46)
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
antacid (trade name Prilosec) that suppresses acid secretion in the stomach
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Etymology tree Proto-Indo-European *h2eḱ-der.? Ancient Greek ὀξῠ́ς (oxŭ́s)bor. English o(xy)- Proto-Indo-European *médhu Proto-Hellenic *méthu Ancient Greek μέθυ (méthu) Proto-Indo-European *swel-der.? Ancient Greek ῡ̔́λη (hū́lē)der. German -yl German Methylbor. English methyl Ancient Greek -ο- (-o-)der. Latin -o-bor. English -o- English me(tho)- Proto-Indo-European *dhewh2-der.? Ancient Greek θέειον (théeion) Ancient Greek θεῖον (theîon)der. English thio- English thi- ▲ English methyl ▲ English -o- German Pyridinbor. English pyridine ▲ Ancient Greek ῡ̔́λη (hū́lē)der. Frenchder. English -yl English pyridinyl Arabic لُبَان (lubān) Proto-Indo-European *yew- Proto-Indo-European *-os Proto-Indo-European *yéwos Proto-Indo-Iranian *yáwas Sanskrit यव (yava)bor.? Proto-Austronesian *zawa Proto-Malayo-Polynesian *zawader.? Old Javanese jawa Old Javanese -i Old Javanese Jawi Javanese ꦗꦮꦶ (jawi)der. Arabic جَاوَة (jāwa) Proto-Afroasiatic Proto-Semitic Arabic ـِيّ (-iyy) Arabic جَاوِيّ (jāwiyy) Arabic لُبَان جَاوِيّ (lubān jāwiyy)bor. Catalan benjuíder. Middle French benjoinder. English benzoin English benzo- English benz- Egyptian jmnbor. Ancient Greek Ᾰ̓́μμων (Ắmmōn)bor. Latin Ammōn Latin ammoniacusder. English ammonia Proto-Indo-European *dheh1-der. Proto-Italic *-iðos Latin -idusder. English -ide English amide English imide Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Hellenic *ə- Ancient Greek ᾰ̓- (ă-) Proto-Indo-European *gweyh3- Proto-Indo-European *-wós Proto-Indo-European *gwih3wós Proto-Indo-European *gwíh3weti Proto-Hellenic *gwyṓw-ō Proto-Hellenic *ďṓwō Ancient Greek ζώω (zṓō) Ancient Greek ζῶ (zô) Proto-Indo-European *-h2 Proto-Indo-European *-éh2 Ancient Greek -ᾱ (-ā) Ancient Greek -η (-ē) Ancient Greek ζωή (zōḗ) French azotebor. English azote English azo- English -ole English azole English imidazole English benzimidazole English timoprazole English -prazole English omeprazole From o(xy)- + me(tho)- + -prazole (“benzimidazole derivative”).
Across languages
Translations
19 source translations are retained for this English entry.
Armenian:
օմեպրազոլ
(ōmeprazol)
— Translations
Bashkir:
омепразол
(omeprazol)
— Translations
Bengali:
ওমিপ্রাজল
(ōmiprajol)
— Translations
Chinese Mandarin:
奧美拉唑 /奥美拉唑
(àoměilāzuò)
— Translations
