from The Century Dictionary.
- noun The corm or rootstock of a fixed hydrozoan; the common base of a colony of hydroids, by which it is attached to some support.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Zoöl.) The rootstock or decumbent stem by which a hydroid is attached to other objects. See
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun zoology The
rootstockor decumbent stemby which a hydroidis attached to other objects.
from Wiktionary, Creative Commons Attribution/Share-Alike License
Ancient Greek hydro- + ῥίζα ("root").
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