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Webster 1913 Edition
Hematoma
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Hemˊa-to′ma
(hēˊmȧ-tō′mȧ or hĕmˊȧ-tō′mȧ)
, Noun.
(Med.)
A localised leakage of blood from the blood vessels into nearby tissues, usually confined within a tissue or organ; especially, a local swelling produced by an effusion of blood beneath the skin, which may clot and discolor the affected area.