noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A ketonic amide derivative of pteridine responsible for some of the colouring in nature. It is also a component of folic acid. countable, uncountable

Etymology

From Greek: πτερόν (pteron) = wing (because it was first found in butterfly wings).

Related phrases

folic acid

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