noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The structural backbone of many alkaloids with a wide variety of structures, including papaverine, noscapine, codeine, morphine, apomorphine, berberine, protopine and tubocurarine. countable, uncountable

Etymology

From benzyl + isoquinoline.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.