noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Any of a class of compounds having a structure consisting of a pyrone ring fused to that of naphthalene

Synonyms

All synonyms

naphthopyranone

Etymology

From naphtho- + pyrone.

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