n.
A white, odorless powder, C9H12N2O6, that is the nucleoside of uracil, important in carbohydrate metabolism, and used in biochemical experiments.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.