Wiktionary
racetam
n. Any of a class of nootropic drugs that share a pyrrolidone nucleus.
Wikipedia
Racetam
Racetams are a class of drugs that share a pyrrolidone nucleus. Some, such as piracetam, are considered nootropics. Some such as oxiracetam and phenylpiracetam are also stimulants. Others such as levetiracetam and seletracetam are anticonvulsants.