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.
Local anesthesia is often used for minor surgeries and outpatient procedures (when patients come in for an operation and can go home that same day). If you are having surgery in a clinic or doctor's office (such as the dentist or dermatologist), this is probably the type of anesthetic that will be used.