Source : WordNet®

ketamine
     n : 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 [syn: {ketamine hydrochloride}, {Ketalar}]