1965, proprietary name (trademark by Wm. H. Rorer Inc., Ft. Washington, Pennsylvania, U.S.A.) of methaqualone used as a sedative drug. The name is said to be based on quiet interlude.
Entries linking to quaalude
methaqualone n.
hypnotic sedative drug, 1961, the name is contracted from components of the compound, methyl + quinazolinone.