benzodiazepine
1. [ noun ] (medicine,pharmacology) any of several similar lipophilic amines used as tranquilizers or sedatives or hypnotics or muscle relaxants; chronic use can lead to dependency
Related terms: tranquilizer muscle_relaxant anxiolytic antianxiety_drug sedative midazolam estazolam diazepam nitrazepam restoril ativan chlordiazepoxide halcion alprazolam