from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A white powder, C5H4N4O, that is an intermediate in the metabolism of animal purines.

from The Century Dictionary.

  • noun A substance (C5H4N4O) found in the muscles, liver, spleen, and other organs, which crystallizes in needles and forms compounds with both acids and bases. It is also produced during the putrefaction of proteids. Also called sarcine.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun organic chemistry A bicyclic heterocycle 3,7-dihydropurin-6-one that is an intermediate in the biosynthesis of uric acid


Sorry, no etymologies found.


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