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Definition of "diffraction grating" [diffraction grating]

  • A usually glass or polished metal surface having a large number of very fine parallel grooves or slits and used to produce optical spectra by diffraction of reflected or transmitted light. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Words like "diffraction grating"