Meaning of autocollimator in English:

autocollimator

Pronunciation /ˌɔːtə(ʊ)ˈkɒlɪmeɪtə/

noun

  • An instrument that uses the principle of autocollimation, e.g. to measure parallelism or alignment.

Origin

Early 20th century; earliest use found in Proceedings of the Royal Society of London. From auto- + collimator, after autocollimation.