Retinal purple
Retinal Ret"i*nal, a. (Anat.) Of or pertaining to the retina. [1913 Webster]

{Retinal purple} (Physiol. Chem.), the visual purple. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • retinal purple — noun a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light • Syn: ↑visual purple, ↑rhodopsin • Hypernyms: ↑photopigment • Part Holonyms: ↑rod, ↑rod cell, ↑ …   Useful english dictionary

  • Retinal — Ret i*nal, a. (Anat.) Of or pertaining to the retina. [1913 Webster] {Retinal purple} (Physiol. Chem.), the visual purple. [1913 Webster] …   The Collaborative International Dictionary of English

  • retinal — I noun either of two yellow to red retinal pigments formed from rhodopsin by the action of light • Syn: ↑retinene • Hypernyms: ↑pigment • Substance Holonyms: ↑visual purple, ↑rhodopsin, ↑ …   Useful english dictionary

  • retinal rod — noun a visual receptor cell that is sensitive to dim light • Syn: ↑rod, ↑rod cell • Hypernyms: ↑visual cell • Part Holonyms: ↑retina • Part Meronyms: ↑ …   Useful english dictionary

  • Purple — This article is about the color. For other uses, see Purple (disambiguation). Purple …   Wikipedia

  • Purple Earth Hypothesis — The astrobiological hypothesis that life forms of early Earth were retinal based rather than chlorophyll based thus making Earth appear purple rather than green. An example of a retinal based organism today is the photosynthetic microbe called… …   Wikipedia

  • visual purple — noun a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light • Syn: ↑rhodopsin, ↑retinal purple • Hypernyms: ↑photopigment • Part Holonyms: ↑rod, ↑rod cell, ↑ …   Useful english dictionary

  • visual purple — noun Date: 1878 a photosensitive red or purple pigment in the retinal rods of various vertebrates; especially rhodopsin …   New Collegiate Dictionary

  • Родопсин (Rhodopsin), Пурпур Зрительный (Visual Purple) — содержащийся внутри палочек пигмент сетчатки глаза, в состав которого входит ретинальдегид (retinal) витамин А и белок. Наличие родопсина в сетчатке глаза необходимо для обеспечения нормального зрения при тусклом свете. Под воздействием света… …   Медицинские термины

  • retinene — noun either of two yellow to red retinal pigments formed from rhodopsin by the action of light • Syn: ↑retinal • Derivationally related forms: ↑retinal (for: ↑retinal) • Hypernyms: ↑pigment …   Useful english dictionary

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