Anaesthetize/əˈnesθətaɪz/ Definition 1 of 1Pro Tip 1/3Pain Elimination Used when referring to eliminating pain during medical procedures. They will anaesthetize the cat before spaying it. Pro Tip 2/3Medical Context Primarily used in medical or dental settings by professionals. The dentist anaesthetized my gums before the extraction. Pro Tip 3/3Specific Areas Can refer to numbing a specific body part, rather than the whole body. The surgeon will anaesthetize only the affected leg.