blue shift

blueshift

[bloo-shift]
noun Astronomy.
a shift toward shorter wavelengths of the spectral lines of a celestial object, caused by the motion of the object toward the observer.
Also, blue shift.


Origin:
1950–55; blue + shift

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To blue shift
Collins
World English Dictionary
blueshift (ˈbluːˌʃɪft)
 
n
Compare redshift a shift in the spectral lines of a stellar spectrum towards the blue end of the visible region relative to the wavelengths of these lines in the terrestrial spectrum: a result of the Doppler effect caused by stars approaching the solar system

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Dictionary.com's 21st Century Lexicon
Main Entry:  blue shift1
Part of Speech:  n
Definition:  an increase in frequency of electromagnetic radiation
Main Entry:  blue shift2
Part of Speech:  n
Definition:  a decrease in or compression of the wavelength (into the blue part of the spectrum) of the light that is emitted from an object that is coming closer
Dictionary.com's 21st Century Lexicon
Copyright © 2003-2014 Dictionary.com, LLC
Cite This Source
American Heritage
Science Dictionary
blue shift  
See under Doppler effect.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature
FAVORITES
RECENT

;