Standard Lemma guide

ritonavir

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: /ɹɪˈtoʊ.nəˌvɪɹ/
  • General-American: /ɹɪˈtɑn.əˌvɪɹ/

1

noun

Meaning 1

An antiretroviral drug C37H48N6O5S2 of the protease inhibitor class that is administered orally to treat HIV-infected and AIDS patients.

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

a protease inhibitor (trade name Norvir) used in treating HIV

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Norvir

Antonyms: none provided

Broader terms: protease inhibitor, PI

History

Etymology

From [Term?] + -navir (“HIV protease inhibitor”).