gravitational lens

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gravitational lens
Abell 2218, a cluster of galaxies in the constellation Draco

gravitational lens

n.
A massive object, such as a star or galaxy, whose gravitational field bends light rays.
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.

gravitational lens

n
(Astronomy) astronomy a lenslike effect in which light rays are bent when passing through the gravitational field of such massive objects as galaxies or black holes
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

gravita′tional lens′



n.
Astron. a celestial body, as a galaxy, whose gravitational field refracts the light of a more distant object.
[1945–50]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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