noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A chemical with formal name 1-[4-(3-hydroxyphenyl)piperidin-4-yl]propan-1-one, formed from ketobemidone by removing a methyl group from the nitrogen atom. uncountable

Etymology

From nor- + ketobemidone.

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