[ ap-uh-loon ]
/ ˈæp əˌlun /

noun Aerospace.

the point in a lunar orbit that is farthest from the moon.
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. 2020

British Dictionary definitions for apolune

/ (ˈæpəˌluːn) /


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

Scientific definitions for apolune

[ ăpə-lōōn′ ]

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.