iodopsin

iodopsin
noun
a violet photopigment in the retinal cones of the eyes of most vertebrates; plays a role in daylight vision
Hypernyms: ↑photopigment
Part Holonyms: ↑cone, ↑cone cell, ↑retinal cone
Substance Meronyms: ↑opsin

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\\ˌīəˈdäpsə̇n\ noun (-s)
Etymology: iod- (from Greek ioeidēs violet-colored + ops- (from Greek opsis sight) + -in — more at iodine, -opsis
: a photosensitive violet pigment in the retinal cones of most animals that is similar to rhodopsin but more labile, that is formed from vitamin A1, and that is important in daylight vision

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/uy'euh dop"sin/, n. Biochem.
a photosensitive violet pigment that occurs in the cones of the retina and is transformed by light into retinal and an opsin protein. Cf. rhodopsin.
[1935-40; < Gk iód(es) taken as deriv. of íon violet (see IODINE) + OPSIN, on the pattern of RHODOPSIN]

Useful english dictionary. 2012.

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Look at other dictionaries:

  • Iodopsin — (Jodopsin) ist die Sammelbezeichnung für die Farbsehpigmente der Zapfen von Tieren. Es handelt sich um Photopsine (das sind Proteine) in kovalenter Bindung mit jeweils einem farbgebenden Stoff (Chromophor) des Typs 1: Neoretinin (11 cis Retinol)… …   Deutsch Wikipedia

  • iodopsin — [ī΄ə däp′sin] n. [< IOD(O) + Gr opsis, sight (< ōps, EYE) + IN1] a photosensitive, violet colored protein pigment found in the cones of the retinas of animals that have color vision: see OPSIN …   English World dictionary

  • iodopsin — noun Etymology: iod (from Greek ioeidēs violet colored) + Greek opsis sight, vision + English in more at optic Date: 1938 a photosensitive violet pigment in the retinal cones that is similar to rhodopsin but more labile, is formed from vitamin A …   New Collegiate Dictionary

  • iodopsin — /uy euh dop sin/, n. Biochem. a photosensitive violet pigment that occurs in the cones of the retina and is transformed by light into retinal and an opsin protein. Cf. rhodopsin. [1935 40; < Gk iód(es) taken as deriv. of íon violet (see IODINE) + …   Universalium

  • iodopsin — Any of three visual pigments, composed of 11 cis retinal bound to an opsin, found in the cones of the retina. SYN: visual violet. [G. ion, violet, + ops, eye, + in] * * * io·dop·sin .ī ə däp sən n a photosensitive violet pigment in the retinal… …   Medical dictionary

  • Iodopsin — Iod|op|sin [griech. i o̅̓de̅s, io eide̅̓s, ióeis = veilchenfarbig; ↑ Opsin] für die Rotempfindlichkeit des Auges beim Farbensehen verantwortliches Netzhautpigment aus 11 cis Retinal u. Zapfenopsin; vgl. Rhodopsin …   Universal-Lexikon

  • iodopsin — n. pigment that is sensitive to light (Chemistry) …   English contemporary dictionary

  • iodopsin — io·dop·sin …   English syllables

  • iodopsin — i•o•dop•sin [[t]ˌaɪ əˈdɒp sɪn[/t]] n. biochem. a photosensitive violet pigment in the cones of the retina • Etymology: 1935–40; < Gk īṓd(ēs) violet colored (der. of íon violet) +(rhod)opsin …   From formal English to slang

  • Jodopsin — Iodopsin (Jodopsin) ist die Sammelbezeichnung für die drei Farbsehpigmente der Zapfen (rot/grün/blau) in Wirbeltieren. Es handelt sich um Proteine (so genannte Opsine) und sie enthalten als farbgebenden Stoff (Chromophor) Neoretinin oder Retinal …   Deutsch Wikipedia

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