Final answer:
General anesthesia is a state of reversible loss of consciousness and sensation induced by general anesthetics. It makes the patient completely unconscious and unable to feel pain during surgery.
Step-by-step explanation:
General anesthesia refers to a state of reversible loss of consciousness and sensation induced by certain drugs called general anesthetics. This means that a patient who receives general anesthesia will be completely unconscious and will not feel pain during a surgical procedure. General anesthesia is distinguished from other forms of anesthesia, such as regional anesthesia, which only affects a specific region of the body, and sedation, which may result in partial awareness.