protopine

P3R1O1T1O1P3I1N1E1

noun

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.

Scrabble 13
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Meanings

nounprotopine (usually uncountable, plural protopines)

plural protopines

  1. uncountableusuallybiochemistryA benzylisoquinoline alkaloid occurring in plants of the family Papaveraceae that has partial agonism for mu and delta opioid receptors, these effects are nalaxone reversible.

Origin

From proto- + opium + -ine.

Full word history & related roots →

Rhymes & wordplay

Anagrams

preoption
Cite this entry
APA

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

MLA

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

Chicago

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

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