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.
For laparoscopic surgery, 3 types of anesthesia are available: local, regional, and general anesthesia. Local anesthesia involves infiltrating the surgical sites with a local anesthetic agent (bupivacaine, lidocaine, and others) to enable a pain-free incision.