openangle glaucoma
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pənˌæŋ noun
Ophthalmology, See under glaucoma.
Dictionary.com Unabridged
noun
Ophthalmology. abnormally high fluid pressure in the eye, most commonly caused either by blockage of the channel through which aqueous humor drains (open-angle glaucoma or chronic glaucoma) or by pressure of the iris against the lens, which traps the aqueous humor (angle-closure glaucoma or acute glaucoma)
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Openangle glaucoma
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| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
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Collins
World English Dictionary
glaucoma (ɡlɔːˈkəʊmə) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n | |
| a disease of the eye in which pressure within the eyeball damages the optic disc, impairing vision, sometimes progressing to blindness | |
| [C17: from Latin, from Greek glaukōma, from glaukos; see | |
| glau'comatous | |
| —adj | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History
glaucoma
1640s, from Gk. glaukoma "cataract, opacity of the lens" (cataracts and glaucoma not distinguished until c.1705), from -oma + glaukos, an adj. of uncertain origin, used in Homer of the sea as "gleaming, silvery" (apparently without a color connotation); used later with a sense
of "bluish-green, gray," of olive leaves and eyes. Homer's glauk-opis Athene could be a "bright-eyed" or a "gray-eyed" goddess. Gk. for "owl" was glauk- from its bright, staring eyes.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary
glaucoma glau·co·ma (glou-kō'mə, glô-)
n.
Any of a group of eye diseases characterized by abnormally high intraocular fluid pressure, damaged optic disk, hardening of the eyeball, and partial to complete loss of vision.
glau·co'ma·tous (-kō'mə-təs) 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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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
glaucoma  (glou-kō'mə, glô-) Pronunciation Key
A disease of the eye in which the pressure of fluid inside the eyeball is abnormally high, caused by obstructed outflow of the fluid. The increased pressure can damage the optic nerve and lead to partial or complete loss of vision. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary
glaucoma [(glow-koh-muh, glaw-koh-muh)]A disease of the eye marked by increased fluid pressure in the eyeball. Glaucoma can damage the optic nerve and may result in blindness if not treated. Surgery may be required for severe cases.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Nearby Words
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