Hydrozoa
noun plural
Hy·dro·zoa
ˌhī-drə-ˈzō-ə 
: a class of coelenterates that includes various simple and compound polyps and jellyfishes having no stomodeum or gastric tentacles
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“Hydrozoa.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Hydrozoa. Accessed 23 Dec. 2024.
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