noun plural

Hy·​dro·​zoa ˌhī-drə-ˈzō-ə How to pronounce Hydrozoa (audio)
: a class of coelenterates that includes various simple and compound polyps and jellyfishes having no stomodeum or gastric tentacles

Dictionary Entries Near Hydrozoa

Cite this Entry

“Hydrozoa.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Hydrozoa. Accessed 18 May. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!