halation

[ hey-ley-shuhn, ha- ]
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nounPhotography.
  1. a blurred effect around the edges of highlight areas in a photographic image caused by reflection and scattering of light through the emulsion from the back surface of the film support or plate.

Origin of halation

1
First recorded in 1855–60; hal(o) + -ation

Words Nearby halation

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use halation in a sentence

British Dictionary definitions for halation

halation

/ (həˈleɪʃən) /


noun
  1. photog fogging usually seen as a bright ring surrounding a source of light: caused by reflection from the back of the film

Origin of halation

1
C19: from halo + -ation

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012