SINCE 1828
hydrozoan
noun
hy·dro·zo·an
| \ ˌhī-drə-ˈzō-ən
\
\
Definition of hydrozoan
: any of a class (Hydrozoa) of cnidarians (such as the hydra, fire coral, and Portuguese man-of-war) that includes solitary and colonial polyps and medusae but often having the medusa stage reduced or absent and lacking nematocysts in the digestive cavity — see also siphonophore
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More Definitions for hydrozoan
hydrozoan
noun
hy·dro·zo·an
| \ -ˈzō-ən
\
\
Medical Definition of hydrozoan
: any of the class Hydrozoa of coelenterates
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