retinal
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nDictionary.com Unabridged
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.
Cite This Source
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Link To retinal
00:10
Retinal
is always a great word to know.
So is ninnyhammer. Does it mean:
| a fool or simpleton; ninny. |
| a gadget; dingus; thingumbob. |
Collins
World English Dictionary
retina (ˈrɛtɪnə) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n , pl -nas, -nae | |
| the light-sensitive membrane forming the inner lining of the posterior wall of the eyeball, composed largely of a specialized terminal expansion of the optic nerve. Images focused here by the lens of the eye are transmitted to the brain as nerve impulses | |
| [C14: from Medieval Latin, perhaps from Latin rēte net] | |
| 'retinal | |
| —adj | |
| retinene or retinal (ˈrɛtɪˌniːn, ˈrɛtɪnəl) | |
| —n | |
| the aldehyde form of the polyene retinol (vitamin A) that associates with the protein opsin to form the visual purple pigment rhodopsin | |
| [C20: from | |
| retinal or retinal | |
| —n | |
| [C20: from | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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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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American Heritage
Medical Dictionary
retinal ret·i·nal (rět'n-āl', -ôl')
n.
See retinaldehyde.
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.
Cite This Source
Example sentences
Maps are made by surveyors who record pointer readings, not retinal images.
Without taurine in their diet, they can go blind from retinal degeneration or die from heart failure.
Claims the market for a successful retinal prosthesis is significant.
Retinal disease, including detachment, can occur but is rare.
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