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collimator

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noun col·li·ma·tor \ ˈkä-lə-ˌmā-tər \

Definition of collimator

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 :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

: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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