cislunar

[ sis-loo-ner ]
/ sɪsˈlu nər /

adjective Astronomy.

of or relating to the space between the earth and the orbit of the moon.

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Origin of cislunar

First recorded in 1865–70; cis- + lunar
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for cislunar

  • To be held for the use of the Undersecretary for Cislunar Navigation incumbent in the year 2492.

British Dictionary definitions for cislunar

cislunar
/ (sɪsˈluːnə) /

adjective

of or relating to the space between the earth and the moonCompare translunar
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