last quarter


noun Astronomy.

the instant, approximately one week after a full moon, when half of the moon's disk is illuminated by the sun.
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Examples from the Web for last quarter

  • The last-quarter moon rose at long last, and shone upon the glassy-rippled water of the lagoon.

    Creatures of the Abyss|Murray Leinster
  • A last-quarter moon was now shining low on the eastern horizon.

    Creatures of the Abyss|Murray Leinster

British Dictionary definitions for last quarter

last quarter

noun

one of the four principal phases of the moon, occurring between full moon and new moon, when half the lighted surface is visibleCompare first quarter

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