Origin and Etymology of ecchymosis
New Latin, from Greek ekchymōsis, from ekchymousthai to extravasate blood, from ex- + chymos juice — more at chyme
First Known Use: 1541
Medical Definition of ecchymosis
: the escape of blood into the tissues from ruptured blood vessels marked by a livid black-and-blue or purple spot or area; also : the discoloration so caused
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