collimator
noun
col·li·ma·tor
ˈkä-lə-ˌmā-tər 
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
Word History
First Known Use
1865, in the meaning defined at sense 1
Dictionary Entries Near collimator
Cite this Entry
“Collimator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/collimator. Accessed 3 Dec. 2023.
Copy Citation
Medical Definition
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
More from Merriam-Webster on collimator
Britannica.com: Encyclopedia article about collimator
Love words? Need even more definitions?
Merriam-Webster unabridged
Share