Compare perilune.

Origin of apolune

1965–70; apo- + -lune < Latin lūna moon, on the model of apogee, etc.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for apolune


  1. the point in a lunar orbit when a spacecraft is at its greatest distance from the moonCompare apocynthion, perilune

Word Origin for apolune

C20: from apo- + -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

apolune in Science


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