protopine.
A benzylisoquinoline alkaloid occurring in plants of the family Papaveraceae that has partial agonism for mu and delta opioid receptors, these effects are nalaxone reversible.
Meaning & usage
A benzylisoquinoline alkaloid occurring in plants of the family Papaveraceae that has partial agonism for mu and delta opioid receptors, these effects are nalaxone reversible.
Where this word comes from
From proto- + opium + -ine.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.