Definitions for lactamˈlæk tæm
Random House Webster's College Dictionary
any of a group of cyclic amides characterized by the NHCO group.
Origin of lactam:
1880–85; lact (one ) +am (ide )
Any of a class of cyclic amides, that are the nitrogen analogs of lactones, formed by heating amino acids; the tautomeric enol forms are known as lactims.
one of a series of anhydrides of an amido type, analogous to the lactones, as oxindol