The American Heritage® Dictionary of the English Language, 4th Edition
n. A crystalline amino acid, C4H8N2O3, found in many proteins, and present in large amounts in some plants, such as asparagus, that is easily hydrolyzed to aspartic acid.
n. A nonessential amino acid C4H8N2O3 found in plants such as asparagus.
the GNU version of the Collaborative International Dictionary of English
n. A white, nitrogenous, crystallizable substance, C4H8N2O3+H2O, found in many plants, and first obtained from asparagus. It is believed to aid in the disposition of nitrogenous matter throughout the plant; -- called also altheine.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a crystalline amino acid found in proteins and in many plants (e.g., asparagus)
Word Usage
"It contains an amino acid called asparagine that bonus! acts as a diuretic to flush excess liquid out of your system."