collimator

noun col·li·ma·tor \ˈkä-lə-ˌmā-tər\

Definition of COLLIMATOR

: 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

1865

Medical Dictionary

noun col·li·ma·tor \ˈkäl-ə-ˌmāt-ər\

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

Next Word in the Dictionary: collinearPrevious Word in the Dictionary: collimating lensAll Words Near: collimator

What made you want to look up collimator? Please tell us where you read or heard it (including the quote, if possible).

Put-downs with flair

How to use a word that (literally) drives some people nuts.

Test your vocab with our fun, fast game

Ailurophobia, and 9 other unusual fears