Wiktionary
benzazepine
n. (context chemistry English) Any of the class of heterocyclic compounds consisting of a benzene ring fused to an azepine ring.
Wikipedia
Benzazepine
Benzazepines are heterocyclic chemical compounds consisting of a benzene ring fused to an azepine ring. Examples include benazepril, fenoldopam, lorcaserin and varenicline.