Definition of ecchymosis in US English:

ecchymosis

noun

Medicine
  • A discoloration of the skin resulting from bleeding underneath, typically caused by bruising.

    • ‘The skull is a frequent site of bone metastases, which commonly present as proptosis and periorbital ecchymoses.’
    • ‘Blanching macules or papules on the extremities (especially palms and soles) appear two to three days later, which may then progress to palpable purpura or necrotic ecchymoses.’
    • ‘Skin hemorrhages in the form of petechiae, ecchymoses, hematomas, and purpura will quickly become apparent.’
    • ‘These changes may result in granulation, fissures, ecchymoses, telangiectases and ulcerations.’
    • ‘The skin and mucous membranes should be inspected for cyanosis, pallor, ecchymoses, telangiectasia, gingivitis, or evidence of bleeding from the oral or nasal mucosa.’
    stain, mark, patch, soiling, streak, spot, blotch, tarnishing
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Origin

Mid 16th century: modern Latin, from Greek ekkhumōsis ‘escape of blood’, from ekkhumonathai ‘force out blood’.

Pronunciation

ecchymosis

/ˌɛkəˈmoʊsəs//ˌekəˈmōsəs/