perilune
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Related to perilune: apolune
per·i·lune
(pĕr′ĭ-lo͞on′)n.
The point in an orbit around the moon where the orbiting body is closest to the moon.
[peri- + Latin lūna, moon; see lune.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
perilune
(ˈpɛrɪˌluːn)n
(Astronautics) the point in a lunar orbit when a spacecraft launched from the moon is nearest the moon. Compare apolune, pericynthion
[C20: from peri- + -lune, from Latin lūna moon]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
per•i•lune
(ˈpɛr ɪˌlun)n.
the point in a lunar orbit that is nearest to the moon.
[1955–60; peri- + -lune < Latin lūna moon]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
perilune
in orbit around a moon, the point nearest the moon. Cf. apolune.
See also: Astronomythe closest point to the moon in a lunar orbit, as that of a spacecraft. Also called pericynthion.
See also: Planets-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
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| Noun | 1. | perilune - periapsis in orbit around the moon periapsis, point of periapsis - (astronomy) the point in an orbit closest to the body being orbited |
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