Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Collimator" Definition
noun
A device capable of collimating radiation, as a long narrow tube in which strongly absorbing or reflecting walls permit only radiation traveling parallel to the tube axis to traverse the entire length.
Source: American Heritage Dictionary
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.
Source: Merriam-Webster
A device for obtaining a beam (as of particles) of limited cross section.
Source: Merriam-Webster
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