macular-degeneration

macular degeneration

noun Ophthalmology.
degeneration of the central portion of the retina, resulting in a loss of sharp vision.
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Collins
World English Dictionary
macular degeneration
 
n
pathological changes in the macula lutea, resulting in loss of central vision: a common cause of blindness in the elderly

Collins English Dictionary - Complete & Unabridged 10th Edition
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00:10
Macular-degeneration is always a great word to know.
So is bezoar. Does it mean:
a gadget; dingus; thingumbob.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
American Heritage
Medical Dictionary

macular degeneration n.
Degeneration of the macula lutea characterized by spots of pigmentation and causing a reduction or loss of central vision.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
macular degeneration   (māk'yə-lər)  Pronunciation Key 
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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