collimator

noun

col·li·ma·tor ˈkä-lə-ˌmā-tər

: a device for producing a beam of parallel rays (as of light) or for forming an infinitely distant virtual image that can be viewed without parallax

: a device for obtaining a beam (as of particles) of limited cross section

First Known Use

1865, in the meaning defined at sense 1

Time Traveler

The first known use of collimator was in 1865

See more words from the same year

Style

“Collimator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/collimator. Accessed 28 Nov. 2024.

Copy Citation

collimator

noun

col·li·ma·tor ˈkäl-ə-ˌmāt-ər

: a device for obtaining a beam of radiation (as X-rays) of limited cross section

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