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8 Words That Are Older Than You Think

cislunar

[sis-loo-ner] /sɪsˈlu nər/
adjective, Astronomy
1.
of or pertaining to the space between the earth and the orbit of the moon.
Origin
1865-1870
1865-70; cis- + lunar
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for cislunar

cislunar

/sɪsˈluːnə/
adjective
1.
of or relating to the space between the earth and the moon Compare 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
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