/ Dictionary / Index A antihalation: Meaning and Definition of Find definitions for: an•ti•ha•la•tion Pronunciation: (an"tē-hā-lā'shun, -ha-, an"tī-), [key] — Photog. Photog. —n. the process of treating a film base with a light-absorbing substance to prevent refraction of light from the rear of the film. —adj. resistant to halation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Antigua and Barbuda antihelix Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language