What do a.m. and p.m. stand for?


[mon-uh-kroh-mey-ter] /ˌmɒn əˈkroʊ meɪ tər/
noun, Optics.
a spectroscope with a slit that can be moved across the spectrum for viewing individual spectral bands.
Also called monochromatic illuminator.
Origin of monochromator
1905-10; monochromat(ic) + (illuminat)or Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for monochromator
  • The first monochromator is vertically focused and the second can be either a vertically or a double focused unit.
  • Spikes were more frequent in the double-monochromator data than in that of the single monochromator.
  • The settings used will depend on the current monochromator selection.
  • In one set up, the incident beam was collimated by a silicon monochromator and the samples were rocked.
British Dictionary definitions for monochromator


(physics) a device that isolates a single wavelength of radiation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source

Word of the Day

Difficulty index for monochromator

Few English speakers likely know this word

Word Value for monochromator

Scrabble Words With Friends