hydrorhiza

[hahy-druh-rahy-zuh]

noun

plural

hydrorhizae 

1. the rootlike base of a hydroid colony, by which it is attached to the substratum.

Other Word Forms

• hydrorhizal adjective

Word History and Origins

Origin of hydrorhiza¹

From New Latin, dating back to 1860–65; hydro- ¹, -rhiza