Hy`dro*rhi"za (?), n.; pl. L. Hydrorhizae (#), E. Hydrorhizas (#). [NL., fr. E. hydra + Gr. a root.] Zool.

The rootstock or decumbent stem by which a hydroid is attached to other objects. See Illust. under Hydroidea.

 

© Webster 1913.

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