51Թ

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perilune

[ per-i-loon ]

noun

  1. the point in the orbit of a heavenly body that is nearest to the moon.

perilune

/ ˈɛɪˌː /

noun

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

/ ĕ′ĭ-̅̅′ /

  1. The point at which an object orbiting the Moon, such as an artificial satellite, is closest to the Moon's center.
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51Թ History and Origins

Origin of perilune1

First recorded in 1955–60; peri- + -lune, from Latin ūԲ “moon,” on the model of perigee
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51Թ History and Origins

Origin of perilune1

C20: from peri- + -lune, from Latin ūԲ moon
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Example Sentences

Examples have not been reviewed.

We were alluding to a very elliptical orbit with a low perilune “above” the north pole and apolune “above” the south pole.

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