n. an intermediate-acting benzodiazepine used for the short-term treatment of insomnia. Temazepam is readily processed in the liver to form an inactive metabolic product; it therefore has a relatively predictable half-life and does not accumulate in the body with repeated doses. As with other benzodiazepine hypnotics, however, tolerance can occur with repeated use. U.S. trade name: Restoril.