HALATION

Etymology

Noun

halation (countable and uncountable, plural halations)

The action of light surrounding some object as if making a halo.

The blurring of light around a bright area of a photographic image, or on a television screen.

Synonyms

• overglow

Anagrams

• antihalo

Source: Wiktionary

Ha*la"tion, n. (Photog.)

Definition: An appearance as of a halo of light, surround the edges of dark object

Source: Webster’s Unabridged Dictionary 1913 Edition