1 halation | Definition of halation

halation

noun
ha·​la·​tion | \ hā-ˈlā-shən How to pronounce halation (audio) \

Definition of halation

1 : the spreading of light beyond its proper boundaries in a developed photographic image
2 : a bright ring that sometimes surrounds a bright object on a television screen

First Known Use of halation

1859, in the meaning defined at sense 1

History and Etymology for halation

halo + -ation

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