adjective, sourer, sourest. 1. having an acid taste, resembling that of vinegar, lemon juice, etc.; tart. 2. rendered acid or affected by fermentation; fermented. 3. producing the one of the four basic taste sensations that is not bitter, salt, or sweet. 4. characteristic of something fermented: a sour smell.
General anesthetics normally are used to produce loss of consciousness before and during surgery. However, for obstetrics (labor and delivery) or certain minor procedures, an anesthetic may be given in small amounts to relieve anxiety or pain without causing unconsciousness.
The following are some of the types of anesthesia: 1  General anesthesia: This is used to make sure you are completely asleep during surgery. 2  Spinal or epidural anesthesia: This is used to numb you from your abdomen to your feet. 3  Interscalene block: This is used to numb your shoulder and arm during a surgery or procedure.