rhi‧zome /ˈraɪzəʊm $ -zoʊm/
noun [countable][
Date: 1800-1900;
Language: Modern Latin;
Origin: rhizoma, from Greek, 'mass of roots', from rhiza 'root']
technical the thick stem of some plants, which lies under the ground and has roots and leaves growing out of it
[TahlilGaran] Dictionary of Contemporary English ▲