Strong's Definition
expanded from the same as 3522; a rim or top margin
KJV Usage: compass
STEPBible — Tyndale Abridged Hebrew Lexicon
כַּרְכֹּב (kar.kov) — ledge. edge, rim
UBS Dictionary of Biblical Hebrew
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
כַּרְכֹּב n.[m.] border, rim, of altar base