An anesthesiologist is a medical doctor who specializes in the field of anesthesiology, which is the practice of administering anesthesia to patients before, during, and after surgical procedures or other medical procedures. They are also known as anesthesiologists or anaesthesiologists.

• Anesthesiologists are responsible for ensuring patient safety and comfort during these procedures by administering appropriate medications and monitoring the patient's vital signs.
• They also work closely with other members of the surgical team, such as surgeons and nurses, to ensure that the patient receives the best possible care.
• It is important to note that there are also other healthcare professionals such as nurse anesthetists and anesthesiologist assistants who are also involved in the administration of anesthesia.
• They work under the supervision of anesthesiologists and their scope of practice and responsibilities may vary depending on the laws and regulations of the state and the country.