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earthshine

[urth-shahyn]
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noun Astronomy.
  1. 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.
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Origin of earthshine

First recorded in 1825–35; earth + shine1
Also called earthlight.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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

earthshine

earthlight

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