Related forms
Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source
00:10
00:09
00:08
00:07
00:06
00:05
00:04
00:03
00:02
00:01
| given to using long words. |
| the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language). |
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
amblyopia
Cite This Source
amblyopia am·bly·o·pi·a (ām'blē-ō'pē-ə)
n.
Dimness of vision, especially when occurring in one eye without apparent physical defect or disease.
am'bly·o'pic (-ō'pĭk, -ŏp'ĭk) adj.
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
amblyopia
reduction in vision in one or both eyes due to abnormal visual experience in early childhood, leading to functional changes in the visual centres of the brain. These changes result from eye-related problems that degrade or distort images received by the brain. The most common causes are misalignment of the eyes (strabismus) and uncorrected (usually asymmetric) refractive errors (e.g., farsightedness, nearsightedness, or astigmatism). Other conditions that affect the clarity of vision, such as congenital cataracts, can also cause amblyopia. In each of these situations the brain receives inferior or inappropriate visual information, which it suppresses over time.
Learn more about amblyopia with a free trial on Britannica.com.
Cite This Source
