/ Dictionary / Index A autocollimation: Meaning and Definition of Find definitions for: au•to•col•li•ma•tion Pronunciation: (ô"tō-kol"u-mā'shun), [key] — n. Optics. the process used in an autocollimator. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. autoclave autocollimator Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language