Hydrozoa
Hydrozoa , noun, plural
[New Latin, from English hydra + Greek zw^,on an animal.]
(Zoology) The Acalepha; one of the classes of colenterates, including the Hydroidea, Discophora, and Siphonophora.
Hydrozoa , noun, plural
[New Latin, from English hydra + Greek zw^,on an animal.]