What does hydrozoan mean?
A hydrozoan is a type of small, usually marine, animal that belongs to the class Hydrozoa. These animals are characterized by a simple, often colonial body structure, and can be found in a variety of aquatic environments. Hydrozoans are closely related to other cnidarians, such as jellyfish and corals, and share many similarities with them. They are typically small, ranging in size from a few millimeters to several centimeters, and have a distinctive body structure that is often composed of a network of tentacles and a central body. Hydrozoans are an important part of many marine ecosystems, serving as a food source for other animals and helping to shape their environments through their feeding activities.
nounA type of small, usually marine, animal that belongs to the class Hydrozoa, characterized by a simple, often colonial body structure.
- A member of the class Hydrozoa.
- A type of cnidarian polyp or medusa.
"The hydrozoan colonies were found attached to rocks in the intertidal zone."
"The hydrozoan colonies were found attached to rocks in the intertidal zone."
"Some hydrozoans have a free-swimming medusa stage in their life cycle."
plural used for multiple individuals or colonies
"Several hydrozoans were observed in the aquarium."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of hydrozoan
The term 'hydrozoan' comes from the Greek words 'hydor', meaning water, and 'zoion', meaning animal. This refers to the aquatic nature of these animals. The class Hydrozoa is part of the phylum Cnidaria, which also includes jellyfish, corals, and sea anemones.
How hydrozoan is actually used
Formal or scientific contexts; not commonly used in everyday conversation.