Compare apolune.

Origin of perilune

1955–60; peri- + -lune < Latin lūna moon, on the model of perigee Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for perilune


  1. the point in a lunar orbit when a spacecraft launched from the moon is nearest the moonCompare apolune, pericynthion

Word Origin for perilune

C20: from peri- + -lune, from Latin lūna moon
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

perilune in Science


  1. The point at which an object orbiting the Moon, such as an artificial satellite, is closest to the Moon's center.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.