hydroid Definition
any of various marine or freshwater invertebrates of the phylum Cnidaria, having a polyp form and a free-swimming medusa form.
Using hydroid: Examples
Take a moment to familiarize yourself with how "hydroid" can be used in various situations through the following examples!
Example
The hydroid is a type of jellyfish that can be found in both freshwater and saltwater.
Example
Hydroids are often used as model organisms for studying the development of cnidarians.
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Summary: hydroid in Brief
A 'hydroid' [hahy-droid] is a type of invertebrate that belongs to the phylum Cnidaria. It has two forms: a polyp form and a free-swimming medusa form. Hydroids can be found in both marine and freshwater environments. They are often used as model organisms for studying the development of cnidarians.
