1. carbon tetrachloride a colorless nonflammable liquid used as a solvent for fats and oils; because of its toxicity its use as a cleaning fluid or fire extinguisher has declined
  2. carbon tetrahalide compounds composed of 1 carbon and 4 halogen molecules
  3. carbon dichloride anthelmintic agent used against hookworm and other nematodes
  4. ethylene tetrachloride anthelmintic agent used against hookworm and other nematodes
  5. trazodone hydrochloride oral antidepressant (trade name Desyrel) that is a nontricyclic drug used as a sedative
  6. iron perchloride a highly toxic chemical used to engrave metal plates and electronic circuits
  7. tetrachloride any compound that contains four chlorine atoms per molecule
  8. doxepin hydrochloride a tricyclic antidepressant with numerous side effects
  9. procaine hydrochloride procaine administered as a hydrochloride
  10. ketamine hydrochloride a general anesthetic and tranquilizer (not a barbiturate) that is administered intravenously or intramuscularly; used mainly by veterinarians or for minor surgery with geriatric or pediatric patients; taken in large doses it causes hallucinations similar to those associated with the use of PCP
  11. nitrogen trichloride a yellow pungent volatile oil (trade name Agene) formerly used for bleaching and aging flour
  12. meperidine hydrochloride a synthetic narcotic drug used to treat pain
  13. carbon dioxide a heavy odorless colorless gas formed during respiration and by the decomposition of organic substances; absorbed from the air by plants in photosynthesis
  14. Carpenteria californica California evergreen shrub having glossy opposite leaves and terminal clusters of a few fragrant white flowers
  15. carbon disulfide a toxic colorless flammable liquid
  16. meclizine hydrochloride an antihistamine used to treat or prevent motion sickness
  17. methadone hydrochloride synthetic narcotic drug similar to morphine but less habit-forming; used in narcotic detoxification and maintenance of heroin addiction
  18. Carboniferous period from 345 million to 280 million years ago
  19. quinacrine hydrochloride a drug (trade name Atabrine) used to treat certain worm infestations and once used to treat malaria
  20. carbonated water effervescent beverage artificially charged with carbon dioxide