a barbiturate drug used in medicine as a sedative and hypnotic. Formula: C11H17N2O3Na US equivalent sodium pentabarbital
pentobarbital sodium pen·to·bar·bi·tal sodium (pěn’tə-bär’bĭ-tôl’, -tāl’)
A white crystalline or powdery barbiturate used as a hypnotic, a sedative, and an anticonvulsive drug. Also called pentobarbitone.
pentobarbitone pen·to·bar·bi·tone (pěn’tə-bär’bĭ-tōn’) n. See pentobarbital sodium.
[pen-tohd] /ˈpɛn toʊd/ noun, Electronics. 1. a vacuum tube having five electrodes, usually a plate, three grids, and a cathode, within the same envelope. /ˈpɛntəʊd/ noun 1. an electronic valve having five electrodes: a cathode, anode, and three grids 2. (modifier) (of a transistor) having three terminals at the base or gate pentode (pěn’tōd’) Any […]
[pen-tl-ahyt] /ˈpɛn tlˌaɪt/ noun 1. a high explosive consisting of pentaerythritol tetranitrate and TNT.
[pen-tom-ik] /pɛnˈtɒm ɪk/ adjective, Military. 1. pertaining to or characterizing the organization of an army division into five groups, each with supporting units, geared to maneuver in keeping with the requirements of atomic warfare. /pɛnˈtɒmɪk/ adjective 1. denoting or relating to the subdivision of an army division into five battle groups, esp for nuclear warfare