ˈaspə(r)ˌtām, əˈspärˌtām noun
( -s )
Etymology: aspart ic acid + phenyl a lanine + m ethyl e ster
: a crystalline compound C 14 H 18 N 2 O 5 that is a diamide synthesized from phenylalanine and aspartic acid and that is used as a low-calorie sweetener