Look up: retinal

1. retinal
   [adj] - in or relating to the retina of the eye
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. Retinal
   (adj). Pertaining to the retina, the thin sheet of cells lining the inside of the eye. (n.) The aldehyde form of vitamin A, which is synthesized in animals from carotenoids extracted from ingested plants. Also called retinaldehyde, retinal is one of the molecules primarily responsible for light sensitivity. See phototransduction.
   Found on http://www.nhm.ac.uk/hosted_sites/pe/200
   
   
3. Retinal
   Relating to the retina.
   Found on http://www.gadsbywicks.co.uk/uploaded/38
   
   
4. Retinal
   Retinal: Pertaining to the retina, the extraordinary layer of neurons (nerve cells) that line the back of the eye, which can sense light and create impulses capable of voyaging through the optic nerve to the brain where the impulses are recognized as an image. For a diagram showing the retina and other structures in the eye, see: Retina.
   Found on http://www.medterms.com/script/main/art.
   
   
5. retinal
   Aldehyde of retinoic acid (vitamin A); complexed with opsin forms rhodopsin. Photosensitive component of all known visual systems. Absorption of light causes retinal to shift from the 11- cis form to the all- trans configuration, and through a complex cascade of reactions excites activity in the neurons synapsed with the rod cell.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
6. Retinal
   Ret'i·nal adjective (Anat.) Of or pertaining to the retina. Retinal purple (Physiol. Chem.) , the visual purple.
   Found on http://www.encyclo.co.uk/webster/R/67
   
   
7. retinal
   1. <anatomy> Pertaining to the retina. ... 2. <biochemistry> The aldehyde of retinol, derived by the oxidative enzymatic splitting of absorbed dietary carotene and having vitamin A activity. In the retina, retinal combines with opsins to form visual pigments. One isomer, 11 cis retinal c...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
8. retinal
   adjective in or relating to the retina of the eye; `retinal cells`
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
9. retinal
   (ret´ĭ-nәl) pertaining to the retina. the aldehyde of retinol, having vitamin A activity. One isomer (11-cis-retinal) combines with opsin in the retinal rods (scotopsin) to form rhodopsin, or visual purple; another, all-trans-retinal, or visual yellow, results from the bleaching of rhodopsin by light,...
   Found on http://www.encyclo.co.uk/local/21001
   
   
10. Retinal
    • (a.) Of or pertaining to the retina.
    Found on http://thinkexist.com/dictionary/meaning
    
    
11. retinal
    (from the article `Physical Sciences`) ...can play in the chemistry of complex molecules. Valentyn Prokhorenko of the University of Toronto and colleagues investigated whether the wave ... ...alpha- and beta-carotenes and cryptoxanthin are important to humans, and beta-carotene is the most active. Retinol (vitamin A alcohol) is ... I...
    Found on http://www.britannica.com/eb/a-z/r/39
    
    
12. retinal
    1. pertaining to the retina. 2. the aldehyde of retinol, derived by the oxidative enzymatic splitting of absorbed dietary carotene, and having vitamin A activity. In the retina, retinal combines with opsins to form visual pigments. One isomer, 11-cis retinal combines with opsin in the rods (scotopsin) to form rhodopsin, or visual purple. Anothe...
    Found on http://users.ugent.be/~rvdstich/eugloss/
    
    
13. retinal
    retinal In, pertaining to, or relating to the retina of the eye: 'The doctor examined the retinal cells.' Related references to 'eye' or 'eye part' word families: blepharo-; core-; corneo-; lenti-, lens-; lenticulo-; irido-; ocelli-; oculo-; op-, -optic; opo-; ophthalm...
    Found on http://www.wordinfo.info/words/index/inf
    
    
14. retinal
    Type: Term Pronunciation: ret′i-năl Definitions: 1. Relating to the retina. 2. Retinaldehyde, most commonly referring to the all-trans form; participates in the visual process; 11-cis-retinal binds with an opsin to form iodopsin or rhodopsin; light causes the formation of all-trans-retinal, which dissociates from the protein.  ...
    Found on http://www.medilexicon.com/medicaldictio
    
    
15. Retinal
    `Retinal`, also called `retinaldehyde` or `vitamin A aldehyde`, is one of the many forms of vitamin A (the number of which varies from species to species). Retinal is a polyene chromophore, and bound to proteins called opsins, is the chemical basis of animal vision. Bound to proteins called type 1 r...
    Found on http://en.wikipedia.org/wiki/Retinal