circumsolar

[ sur-kuhm-soh-ler ]
/ ˌsɜr kəmˈsoʊ lər /

adjective

directed, traveling, etc., around the sun: the earth's circumsolar course.

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Origin of circumsolar

First recorded in 1840–50; circum- + solar1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for circumsolar

circumsolar
/ (ˌsɜːkəmˈsəʊlə) /

adjective

surrounding or rotating around the sun
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