Search Result for "hydroid": 
Wordnet 3.0

NOUN (1)

1. colonial coelenterates having the polyp phase dominant;
[syn: hydrozoan, hydroid]



The Collaborative International Dictionary of English v.0.48:

Hydroid \Hy"droid\, a. [Hydra + -oid.] (Zool.)
   Related to, or resembling, the hydra; of or pertaining to the
   Hydroidea. -- n. One of the Hydroideas.
   [1913 Webster]


WordNet (r) 3.0 (2006):

hydroid
    n 1: colonial coelenterates having the polyp phase dominant
         [syn: hydrozoan, hydroid]