NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,545 terms related to cancer and medicine.
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- listen (A-nes-THEE-zhuh)
- 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.