[ sur-kuh m-loo-ner ]
/ ˌsɜr kəmˈlu nər /
rotating about or surrounding the moon.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for circumlunar
Soon, the thrust would be needed in reverse, for braking action, near the end of the sixty hour journey into a circumlunar orbit.
The relatively low velocity needed to maintain vehicles in circumlunar orbits, made its danger to such vehicles small.
British Dictionary definitions for circumlunar
/ (ˌsɜːkəmˈluːnə) /
around or revolving around the moona circumlunar orbit
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