autocollimation

[ aw-toh-kol-uh-mey-shuhn ]
/ ˌɔ toʊˌkɒl əˈmeɪ ʃən /

noun Optics.

the process used in an autocollimator.

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Origin of autocollimation

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020