exsanguination

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exsanguination (iks-sang-win-ay-shŏn) n.
1. depriving the body of blood; for example, as a result of an accident causing severe bleeding.

2. a technique for providing a bloodless field to facilitate certain operative procedures.

3. the removal of blood from a part (usually a limb) before stopping the inflow of blood (by tourniquet).
exsanguinate vb.