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collimator

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noun col·li·ma·tor \ˈkä-lə-ˌmā-tər\

Definition of collimator

  1. 1 :  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

  2. 2 :  a device for obtaining a beam (as of particles) of limited cross section

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First Known Use of collimator

1865

Medical Dictionary

collimator

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noun col·li·ma·tor \ˈkäl-ə-ˌmāt-ər\

Medical Definition of collimator

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

Learn More about collimator

  1. Britannica.com: Encyclopedia article about collimator

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