a loss of feeling or awareness caused by drugs or other substances. anesthesia keeps patients from feeling pain during surgery or other procedures. local anesthesia is a loss of feeling in one small area of the body. regional anesthesia is a loss of feeling in a part of the body, such as an arm or leg. general anesthesia is a loss of feeling and a complete loss of awareness that feels like a very deep sleep.
全身麻酔.
a substance used as an anesthetic
無菌手術.