11-cis-retinal

[ -sĭs′rĕt′n-ăl′, -ôl′ ]

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The isomer of retinaldehyde that enzymatically combines with opsin to form rhodopsin.

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Mississippi’s nickname comes from the magnificent trees that grow there. What is it?

To complement brain wiring, everyone walks around with retinal cams.
The Internet Embedded in Your Head|J.T. Price|November 21, 2014|DAILY BEAST
It was lunchtime when a tracked launcher with four SA-11 surface-to-air missiles rolled into town and parked on Karapetyan Street.
MH17 Missile Can't Hide From These Internet Sleuths|Eliot Higgins|August 2, 2014|DAILY BEAST
U.S. officials have said the MH17 was brought down by a more sophisticated system known by NATO as the SA-11.
Exclusive: Ukraine Asked U.S. for Tech to Counter Russia's Jet-Killers|Eli Lake|July 23, 2014|DAILY BEAST
Ukrainian government intercepts also purport to reveal Ukrainian separatists acknowledging they controlled SA-11 systems.
U.S. Intelligence: Separatists, Not Russians, Killed MH17|Josh Rogin|July 22, 2014|DAILY BEAST

Numbers USA, FAIR, and CIS were all part of the effort that successfully defeated the DREAM Act in the Senate in 2010.
Inside The Center For Immigration Studies, The Immigration False-Fact Think Tank|Caitlin Dickson|May 15, 2014|DAILY BEAST
In order then to avoid diplopia the macula lutea moves to where the retinal image is formed.
Schweigger on Squint|C. Schweigger
Single vision was also present when looking strongly to one side, and with differentiation of one retinal image by a red glass.
Schweigger on Squint|C. Schweigger
When 'Tom came home from labour and Cis from milking rose,' there was now no more sound of tabor, nor 'merrily went their toes.'
'That Very Mab'|May Kendall and Andrew Lang
Therefore Mr. Posket and Cis are put into an adjoining room.
Dramatic Technique|George Pierce Baker
This is generally accounted for by fatigue of the retinal process.
Visual Illusions|Matthew Luckiesh