what is a rhizome
Full Definition of RHIZOME. : a somewhat elongate usually horizontal subterranean plant stem that is often thickened by deposits of reserve food material, produces shoots above and roots below, and is distinguished from a true root in possessing buds, nodes, and usually scalelike leaves.â rhiÂ·zoÂ·mic \rÄ«-ËzÅ-mik, -Ëzae-\ ËzÃ¤. adjective a somewhat elongate usually horizontal subterranean plant stem that is often thickened by deposits of reserve food material, produces shoots above and roots below, and is distinguished from a true root in possessing buds, nodes, and usually scalelike leaves.