# purine

> English word · Noun · IPA /ˈpjʊəɹiːn/ · frequency rank #77,115

## Definitions
1. Any of a class of organic heterocyclic compounds, composed of fused pyrimidine and imidazole rings, that constitute one of the two groups of organic nitrogenous bases (the other being the pyrimidines) and are components of nucleic acids.

## Etymology
Borrowed from German Purin.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/purine