col·li·ma·tor
(kŏl′ə-mā′tər)n.
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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
collimator
(ˈkɒlɪˌmeɪtə)n
1. (General Physics) a small telescope attached to a larger optical instrument as an aid in fixing its line of sight
2. (General Physics) an optical system of lenses and slits producing a nondivergent beam of light, usually for use in spectroscopes
3. (General Physics) any device for limiting the size and angle of spread of a beam of radiation or particles
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
col•li•ma•tor
(ˈkɒl əˌmeɪ tər)n.
1. a fixed telescope for use in collimating other instruments.
2. an optical system that transmits parallel rays of light.
3. a device for producing a particle beam in which all the particle paths are parallel.
[1815–25]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
| Noun | 1. |  collimator - a small telescope attached to a large telescope to use in setting the line of the larger one |
| 2. | collimator - optical device consisting of a tube containing a convex achromatic lens at one end and a slit at the other with the slit at the focus of the lens; light rays leave the slit as a parallel beam optical device - a device for producing or controlling light prism spectroscope, spectroscope - an optical instrument for spectrographic analysis |
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.