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
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
- cartilages
- cartilagineous
- cartilaginificatia
- cartilaginifications
- cartilaginous
- cartilaginous fish
- cartilaginous ossification
- carting
- cartload
- cartloads
- cartman
- cartmen
- cartobibliography
- cartogram
- cartograms
- cartograph
- cartographer
- cartographers
- cartographic
- cartographic unit
- cartographical
- cartographically
- cartographies
- cartography
- cartomancy