Standard Lemma guide

lansoprazole

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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  • General-American: /lænˈsoʊ.pɹəˌzoʊl/

1

noun

Meaning 1

A particular proton pump inhibitor C16H14F3N3O2S (trademark Prevacid) similar to omeprazole that prevents the stomach from producing acid.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

antacid (trade name Prevacid) that suppresses acid secretion in the stomach

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Prevacid

Antonyms: none provided

Broader terms: acid

History

Etymology

From [Term?] + -prazole (“benimidazole derivative”).