PURINE

Purine

A purine is a heterocyclic aromatic organic compound. It consists of a pyrimidine ring fused to an imidazole ring. Purines, including substituted purines and their tautomers, are the most widely occurring nitrogen-containing heterocycle in nature.

The above text is a snippet from Wikipedia: Purine
and as such is available under the Creative Commons Attribution/Share-Alike License.

purine

Noun

  1. Any of a class of organic heterocyclic base containing fused pyrimidine and imidazole rings; they are components of nucleic acids


The above text is a snippet from Wiktionary: purine
and as such is available under the Creative Commons Attribution/Share-Alike License.

Need help with a clue?
Try your search in the crossword dictionary!