diazepam[dī az′ə pam′]
a tranquilizer, CHClNO, that relaxes muscles and prevents or inhibits convulsions
A drug, C16H13ClN2O, used to treat anxiety and as a sedative, skeletal muscle relaxant, and anticonvulsant.
Origin of diazepamdiazep(ine), seven-member ring containing two nitrogens; see benzodiazepine + -am, chemical suffix (ultimately from ammonium).
From (benzo)diazep(ine) + -am of unknown origin.