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Meaning of protopine | Babel Free

Noun CEFR B2

Definitions

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.

uncountable, usually

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

protoplanet protoplanetary disk protoplanetary nebula protoplanetesimal Protoplasm Protoplasmic

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