Definition of Retinal rod
1. Noun. A visual receptor cell that is sensitive to dim light.
Group relationships: Retina
Generic synonyms: Visual Cell
Terms within: Retinal Purple, Rhodopsin, Visual Purple
Medical Definition of Retinal rod
Retinal Rod Pictures
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Lexicographical Neighbors of Retinal Rod
Literary usage of Retinal rod
Below you will find example usage of this term as found in modern and/or classical literature:
1. Journal of Morphology by Wistar Institute of Anatomy and Biology (1892)
"In one case a retinal rod was seen continuous with one of the lenses or lens elements (Fig. 50). Here the short retinal rod expands as ..."
2. The Popular Science Review: A Quarterly Miscellany of Entertaining and (1869)
"The substance of the vertebrate retinal rod has been discovered to be composed of matter having different refractive power, which is so disposed that the ..."
3. The Ocular muscles by Howard Forde Hansell (1912)
"The larger circle represents the limits of space; the smaller one the retina. It is evident then that every retinal rod and cone has its inevitable related ..."
4. A Text Book of Physiology by John Gray McKendrick (1889)
"The diameter of the «nd of a single retinal rod or cone is about -0032 mm., so that the image falling within the smallest visual angle is '0008 mm. larger ..."
5. Encyclopaedia Britannica: A Standard Work of Reference in Art, Literature (1907)
"... nearly the diameter of a single retinal rod or cone. Two objects, therefore, included in a visual angle of less than 60 seconds, appear as one i>oint. ..."
6. Sight: An Exposition of the Principles of Monocular and Binocular Vision by Joseph LeConte (1897)
"A ,a ray from a point d in space passes in a straight line through the nodal point n, and strikes a certain retinal rod d ; that impression is projected by ..."