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port-wine stain

[pawrt-wahyn, pohrt-]
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noun
  1. a large birthmark of purplish color, usually on the face or neck.
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Origin of port-wine stain

First recorded in 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for port wine stain

port wine stain

noun
  1. a type of haemangioma, seen as a purplish birthmark, often large and on the face or neck
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
port wine stain in Medicine

port-wine stain

(pôrt′wīn′)
n.
  1. A purplish area of the skin, usually on the head and neck, appearing at birth and caused by an overgrowth of the cutaneous capillaries.nevus flammeus port-wine mark
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.