hydrozoan

[hahy-druh-zoh-uhn]

hy·dro·zo·an

[hahy-druh-zoh-uhn]
noun
1.
any freshwater or marine coelenterate of the class Hydrozoa, including free-swimming or attached types, as the hydra, in which one developmental stage, either the polyp or medusa, is absent, and colonial types, as the Portuguese man-of-war, in which both medusa and polyp stages are present in a single colony.
adjective
2.
belonging or pertaining to the Hydrozoa.

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Hydrozoan is always a great word to know.
So is ort. Does it mean:
a scrap or morsel of food left at a meal.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.

Origin:
1875–80; < Neo-Latin Hydrozo(a) (see hydro-1, -zoa) + -an
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World English Dictionary
hydrozoan (ˌhaɪdrəʊˈzəʊən)
 
n
1.  any colonial or solitary coelenterate of the class Hydrozoa, which includes the hydra, Portuguese man-of-war, and the sertularians
 
adj
2.  of, relating to, or belonging to the Hydrozoa

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