I. adjective Etymology: ultimately from New Latin Hydra Date: circa 1864 of or relating to a hydrozoan, II. noun Date: 1865 hydrozoan
HYDROID
Meaning of HYDROID in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012