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.
Drugs to Control Pain and Anxiety. Local anesthesia, general anesthesia, nitrous oxide, or intravenous sedation is commonly used in dental procedures to help control pain and anxiety. Other pain relievers include prescription or nonprescription anti-inflammatory drugs, acetaminophen (Tylenol), anesthetics and topical analgesics. Anti-inflammatory drugs.