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perilune

American  
[per-i-loon] / ˈpɛr ɪˌlun /

noun

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

perilune British  
/ ˈpɛrɪˌluːn /

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 Scientific  
/ pĕr′ĭ-lo̅o̅n′ /

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

Etymology

Origin of perilune

First recorded in 1955–60; peri- + -lune, from Latin lūna “moon,” on the model of perigee

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.