2-Pyrrolidinone; 2-ketopyrrolidine; 2-oxopyrrolidine;an industrial solvent, plasticiser, and coalescing agent. ... (05 Mar 2000) ... 
Type: Term Pronunciation: pēr-rōl-i-dōn′ Definitions: 1. Member of a family of chemicals related by structure; produces diverse activity on biologic systems. Synonyms: 2-oxopyrrolidine