Definition of autocollimator in English:

autocollimator

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.

Pronunciation

autocollimator

/ˌɔːtə(ʊ)ˈkɒlɪmeɪtə/