rod celln.
/ˈrɒd sɛl/, U.S. /ˈrɑd ˈsɛl/ Anatomy and Zoology.
1. Any of various kinds of cell with a rod-like shape or constituent, or forming part of a rod-shaped organ or structure; (in flatworms) a cell which secretes rhabdoids. Now rare.
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1862 Brit. & Foreign Medico-chirurg. Rev. 29 425 The peculiar cellular formations [in the epithelium of the frog's tongue]..might, by reason of their form and their agreement with the rods..in the retina, be suitably designated by the name of rod-cells.
1877 Q. Jrnl. Microsc. Sci. 17 292 The curious rod-cells of land planarians are remarkable structures. Several long hyaline rods occur coiled up in each cell, and these rods are shot forth on irritation of the animal.
1932 Times Lit. Suppl. 10 Nov. 843/3 The rod-cells found in the brains of patients suffering from general paralysis of the insane.
2007 Jrnl. Cell Biol. 177 186/1 Fish form neural tubes by hollowing out a solid rod of cells... The rod cells become polarized such that their future apical side is adjacent to the lumen.
2. An elongated light-sensitive cell in the retina; = rod n.1 13.
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the world > life > the body > sense organ > sight organ > parts of sight organ > [noun] > retina > rods or cones
rod1844
cone1867
rod cell1877
myoid1900
1877 Brit. & Foreign Medico-chirurg. Rev. 60 226 Each rod cell is composed of rod, rod granule, rod fibre, and rod cone.
1883 E. B. Aveling tr. E. Haeckel Pedigree of Man x. 340 In the lower animals these optical rod-cells are of simple and uniform nature.
1970 E. J. Ambrose & D. M. Easty Cell Biol. i. 26 In the complex light-sensitive rod cells of the vertebrate retina the membrane and fibre structure of cilia have been modified to receive light and convert it into an electrochemical stimulus.
2006 Sci. News 11 Nov. 308/2 For years, researchers have aimed to transplant stem cells to replace light-sensitive rod cells that had degenerated.
This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022).
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