aspartame

CIDE DICTIONARY

aspartame, n. 

 an artificial sweetener containing an aspartic acid peptide, (C14H18N2O5); it is 160 times sweeter than sucrose (cane sugar) and is used as a calorie-free sweetener. Chemically it is N-L-. It is sold also under the trade name Equal.  [WordNet 1.5]

OXFORD DICTIONARY

aspartame, n. a very sweet low-calorie substance used as a sweetener instead of sugar or saccharin.

Etymology

chem. name 1-methyl N- L- aspartyl- L- phenylalanine, f. aspartic acid (invented name)

ROGET THESAURUS

aspartame

Sweetness

N sweetness, dulcitude, sugar, syrup, treacle, molasses, honey, manna, confection, confectionary, sweets, grocery, conserve, preserve, confiture, jam, julep, sugar-candy, sugar-plum, licorice, marmalade, plum, lollipop, bonbon, jujube, comfit, sweetmeat, apple butter, caramel, damson, glucose, maple sirup, maple syrup, maple sugar, mithai, sorghum, taffy, nectar, hydromel, mead, meade, metheglin, honeysuckle, liqueur, sweet wine, aperitif, sugar cane, sugar beets, desert, pastry, pie, cake, candy, ice cream, tart, puff, pudding (food), dulcification, dulcoration, sweetener, corn syrup, cane sugar, refined sugar, beet sugar, dextrose, artificial sweetener, saccharin, cyclamate, aspartame, Sweet'N Low, sweet, saccharine, sacchariferous, dulcet, candied, honied, luscious, lush, nectarious, melliferous, sweetened, sweet as a nut, sweet as sugar, sweet as honey, sickly sweet, eau sucr_ee, sweets to the sweet.