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rhodopsin

 - 4 dictionary results

rho⋅dop⋅sin

  [roh-dop-sin]
Use rhodopsin in a Sentence
–noun Biochemistry.
a bright-red photosensitive pigment found in the rod-shaped cells of the retina of certain fishes and most higher vertebrates: it is broken down by the action of dim light into retinal and opsin.
Also called visual purple.

Origin:
1885–90; rhod- + Gk óps(is) sight, vision + -in 2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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rho·dop·sin   (rō-dŏp'sĭn)   
n.  The pigment sensitive to red light in the retinal rods of the eyes, consisting of opsin and retinene. Also called visual purple.

[rhod(o)- + Greek opsis, sight; see -opsis + -in.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: rho·dop·sin
Pronunciation: rO-'däp-s&n
Function: noun
: a red photosensitive pigment in the retinal rods of marine fishesand most higher vertebrates that is important in vision in dim light, is quickly bleached by light to a mixture of opsin and retinal, and is regenerated in the dark called also visual purple
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

rhodopsin rho·dop·sin (rō-dŏp'sĭn)
n.
A thermolabile protein that is sensitive to red light and is found in the external segments of the rods of the retina of the eye. Also called visual purple.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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