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macula

[mak-yuh-luh] /ˈmæk yə lə/
noun, plural maculae
[mak-yuh-lee] /ˈmæk yəˌli/ (Show IPA)
1.
a spot or blotch, especially on one's skin; macule.
2.
Ophthalmology.
  1. an opaque spot on the cornea.
  2. Also called macula lutea, yellow spot. an irregularly oval, yellow-pigmented area on the central retina, containing color-sensitive rods and the central point of sharpest vision.
Origin
1350-1400
1350-1400; Middle English < Latin: spot, blemish
Related forms
macular, adjective
multimacular, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for macular
  • One has age-related macular degeneration, the main cause of blindness in rich countries.
  • So my family tends to get cataracts, glaucoma and macular degeneration.
  • It is squirted into the eyeballs of people with macular degeneration as a treatment for the blindness-causing disease.
  • macular degeneration is an eye disorder that slowly destroys sharp, central vision.
  • There are other exciting applications, such as against macular degeneration, a disease of the eye.
  • In my family there is a history of serious macular degeneration.
  • My dad is blind from wet macular degeneration and diabetic retinopathy, and we're eagerly awaiting implants for his condition.
  • They also plan to test the system on patients with macular degeneration and glaucoma.
  • The vitamin does not appear to protect against age-related macular degeneration.
  • Cystoid macular edema is a type of macular edema that includes cyst formation.
British Dictionary definitions for macular

macula

/ˈmækjʊlə/
noun (anatomy) (pl) -ulae (-jʊˌliː), -ules
1.
a small spot or area of distinct colour, esp the macula lutea
2.
any small discoloured spot or blemish on the skin, such as a freckle
Derived Forms
macular, adjective
Word Origin
C14: from Latin
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
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Word Origin and History for macular
adj.

1822, from macula + -ar.

macula

n.

plural maculae, from Latin macula "spot, stain," used of various spots (sunspots, markings on minerals, etc.), of uncertain origin. Especially the macula lutea in the eye.

Online Etymology Dictionary, © 2010 Douglas Harper
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macular in Medicine

macula mac·u·la (māk'yə-lə)
n. pl. mac·u·las or mac·u·lae (-lē')

  1. Also mac·ule (-yōōl') A spot, stain, or blemish, especially an area of discoloration on the skin caused by excess or lack of pigment.

  2. A small area distinguishable from the surrounding tissue.

  3. The macula lutea.


mac'u·lar adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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macular in Science
macula
  (māk'yə-lə)   
Plural maculae (māk'yə-lē') or maculas
  1. A minute yellowish area located near the center of the retina of the eye, at which visual perception is most acute.

  2. A discolored spot on the skin that is not elevated above the surface.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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