Definitions for eigengrau
eigen·grau

WiktionaryRate this definition:0.0 / 0 votes

1. eigengraunoun

   The dark grey colour seen by the eyes in perfect darkness, as a result of signals from the optic nerves.

2. Etymology: From German Eigengrau ‘intrinsic grey’.

WikipediaRate this definition:0.0 / 0 votes

1. Eigengrau

   Eigengrau (German for "intrinsic gray"; pronounced [ˈʔaɪ̯gŋ̍ˌgʁaʊ̯]), also called Eigenlicht (Dutch and German for "intrinsic light"), dark light, or brain gray, is the uniform dark gray background color that many people report seeing in the absence of light. The term Eigenlicht dates back to the nineteenth century, but has rarely been used in recent scientific publications. Common scientific terms for the phenomenon include "visual noise" or "background adaptation". These terms arise due to the perception of an ever-changing field of tiny black and white dots seen in the phenomenon.Eigengrau is perceived as lighter than a black object in normal lighting conditions, because contrast is more important to the visual system than absolute brightness. For example, the night sky looks darker than Eigengrau because of the contrast provided by the stars.

WikidataRate this definition:4.0 / 2 votes

1. Eigengrau

   Eigengrau, also called Eigenlicht, dark light, or brain gray, is the color seen by the eye in perfect darkness. Even in the absence of light, some action potentials are still sent along the optic nerve, causing the sensation of a uniform dark gray color. Eigengrau is perceived as lighter than a black object in normal lighting conditions, because contrast is more important to the visual system than absolute brightness. For example, the night sky looks darker than eigengrau because of the contrast provided by the stars. Eigengrau can be controlled consciously and turned into shapes such as circles and crosses.

How to pronounce eigengrau?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say eigengrau in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of eigengrau in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of eigengrau in Pythagorean Numerology is: 6

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Eigengrau
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Eigengrau
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=eigengrau