rhizoma
/raɪˈzoʊmə/
noun
- A thick, underground stem of a plant that grows horizontally and sends out roots and shoots; also called a rhizome.
- The gardener divided the iris rhizoma to plant more flowers.
- Ginger is a rhizoma that is used as a spice in cooking.
- Some weeds spread quickly because their rhizoma can grow new plants.