Dictionary entry

Hydrorhiza

Webster's Dictionary 1913

‖Hy′dro‐rhi″za (?), n.; pl. L. Hydrorhizæ (#), E. Hydrorhizas (#). [NL., fr. E. hydra + Gr. � a root.] (Zoöl.) The rootstock or decumbent stem by which a hydroid is attached to other objects. See Illust. under Hydroidea.