Hydroid
ahd-5
noun.
Any of numerous solitary or colonial hydrozoans having a polyp rather than a medusa as the dominant stage of the life cycle.
noun.
The asexual polyp in the life cycle of a hydrozoan.
The Century Dictionary and Cyclopedia
Like water; living in the water.
Resembling the hydra, or an animal of the genus
Hydra.
Pertaining to the
Hydroida
or
Hydroidea
, or having their characters: as, a
hydroid
hydrozoan.
noun.
One of the
Hydroidea.
noun.
A hydropolyp.
the GNU version of the Collaborative International Dictionary of English
adjective.
Related to, or resembling, the hydra; of or pertaining to the Hydroidea.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
Any of many
colonial
coelenterates
that exist mainly as a
polyp
; a
hydrozoan
adjective.
Of or pertaining to such creatures
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
colonial coelenterates having the polyp phase dominant