| photoreceptors | Cells specialised to detect and transduce light and darkness. Rods and cones are the photoreceptors in the vertebrate retina. (12 Dec 1998) |
|---|---|
| photoreceptors, invertebrate | Cells in invertebrates which are specialised to detect and transduce light and darkness and relay that information centrally in the nervous system. (12 Dec 1998) |
| vertebrate | <zoology> One of the Vertebrata. Source: Websters Dictionary (01 Mar 1998) |
| vertebrate hormones | Hormones synthesised in vertebrates. (05 Mar 2000) |
| vertebrate viruses | Viruses infecting man and other vertebrates. (12 Dec 1998) |
| notochordal vertebrate | A lower vertebrate in which the notochord persists, unossified, in adult life. (05 Mar 2000) |