n. & adj.
n. any aquatic coelenterate of the class Hydrozoa of mainly marine polyp or medusoid forms, including hydra and Portuguese man-of-war.
[ mod.L Hydrozoa (as HYDRA, Gk zoion animal) ]
n. & adj.
n. any aquatic coelenterate of the class Hydrozoa of mainly marine polyp or medusoid forms, including hydra and Portuguese man-of-war.
[ mod.L Hydrozoa (as HYDRA, Gk zoion animal) ]
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012