from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. See AMP.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A nucleotide found in RNA. It is an ester of phosphoric acid with the nucleoside adenosine. It consists of a phosphate group, a pentose sugar ribose, and the nucleobase adenine.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a nucleotide found in muscle cells and important in metabolism; reversibly convertible to ADP and ATP


aden(ine) + -yl + -ic + acid.
(American Heritage® Dictionary of the English Language, Fourth Edition)


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