H4Y4D2R1O1Z10O1A1N1
25 points
HYDROZOAN is validvalid
[n HYDROZOANS]
any coelenterate of the class Hydrozoa, comprising organisms that are mostly marine and colonial with polyp and medusoid stages in the life cycle, also HYDROZOON [n -S]
[n HYDROZOANS]
any coelenterate of the class Hydrozoa, comprising organisms that are mostly marine and colonial with polyp and medusoid stages in the life cycle, also HYDROZOON [n -S]