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macular degeneration

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noun Ophthalmology.
  1. degeneration of the central portion of the retina, resulting in a loss of sharp vision.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for macular degeneration

macular degeneration

noun
  1. pathological changes in the macula lutea, resulting in loss of central vision: a common cause of blindness in the elderly
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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

macular degeneration in Medicine

macular degeneration

n.
  1. Degeneration of the macula lutea characterized by spots of pigmentation and causing a reduction or loss of central vision.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

macular degeneration in Science

macular degeneration

[măkyə-lər]
  1. A progressive condition, usually seen in the elderly, characterized by a gradual loss of vision in the central area of the visual field and eventual blindness.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.