redout

[red-out]

noun

a condition experienced by pilots and astronauts in which blood is forced to the head and results in a reddening of the field of vision during rapid deceleration or in maneuvers that produce a negative gravity force.

Origin of redout

1940–45; red¹ + out, on model of blackout

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for redout

Historical Examples of redout

I had the pleasure of seeing old Redout this morning, the flower-painter par excellence.
Audubon and his Journals, Volume I (of 2)
Maria R. Audubon
Redout told me the young Duchesse d'Orlans had subscribed, and I would receive a letter to that effect.
Audubon and his Journals, Volume I (of 2)
Maria R. Audubon
Fifty sat down in the big room of the Redout, twenty in the Green Room.
The Spell of Switzerland
Nathan Haskell Dole