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[urth-shahyn] /ˈɜrθˌʃaɪn/
noun, Astronomy
the faint illumination of the part of the moon not illuminated by sunlight, as during a crescent phase, caused by the reflection of light from the earth.
Also called earthlight.
Origin of earthshine
1825-35; earth + shine1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for earthshine
Historical Examples
  • The ancients were greatly exercised in their minds to account for this "earthlight," or "earthshine," as it is also called.

    Astronomy of To-day Cecil G. Dolmage
British Dictionary definitions for earthshine


the ashen light reflected from the earth, which illuminates the new moon when it is not receiving light directly from the sun
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
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