hydrorhiza

[ hahy-druh-rahy-zuh ]

noun

, plural hy·dro·rhi·zae [hahy-dr, uh, -, rahy, -zee].

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

Other Words From

• hydro·rhizal adjective

Word History and Origins

Origin of hydrorhiza¹

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

Example Sentences

The colonies are cylindrical tubes about one quarter of an inch in height, rising from a creeping stem (hydrorhiza).

From Project Gutenberg

In some cases, however, medusa-buds are formed on the hydrorhiza, as in Hydrocorallines.

From Project Gutenberg

The foot by which it is attached often sends out root-like processes—the hydrorhiza (c).

From Project Gutenberg

As a general rule polyp-buds are produced from the hydrorhiza and hydrocaulus, while medusa-buds are formed on the hydranth.

From Project Gutenberg