1. The process of rendering insensible with the use of medications: The administration of drugs, during surgery, labor, and delivery, or other medical procedures that does away with pain, is known as anaesthetization.
2. The process or provision of medications that is designed to render the recipient insensible: Rex seemed to be afraid of having an operation, but Dr. Sparks assured him that the anesthetization would make it possible to perform the surgery and he wouldn't feel any pain and he would wake up feeling better.