- The branch of medicine specializing in the use of drugs or other agents that cause insensibility to pain. There is a major distinction between an anesthesiologist and an anesthetist. An anesthesiologist has a doctorate whereas an anesthetist does not. An anesthesiologist is a physician (or, less often, a dentist) who is specialized in the practice of anesthesiology while an anesthetist is a nurse or technician trained to administer anesthetics.
* * *The medical specialty concerned with the pharmacological, physiological, and clinical basis of anesthesia and related fields, including resuscitation, intensive respiratory care, and acute and chronic pain. [anesthesia + G. logos, treatise]
* * *an·es·the·si·ol·o·gy or chiefly Brit an·aes·the·si·ol·o·gy -jē n, pl -gies a branch of medical science dealing with anesthesia and anesthetics
* * *an·es·the·si·ol·o·gy (an″əs-the″ze-olґə-je) [anesthesia + -logy] the branch of medicine that studies anesthesia and anesthetics.
Medical dictionary. 2011.