eigengrau

== English == === Etymology === From German Eigengrau (“intrinsic grey”). === Pronunciation === IPA(key): /ˈaɪɡənɡɹaʊ/ === Noun === eigengrau (uncountable) The dark grey colour seen by the eyes in perfect darkness as a result of signals from the optic nerves. ==== Synonyms ==== Eigenlicht, brain gray/brain grey, dark light