Planariidae

noun plural

Plan·​a·​ri·​idae ˌplan-ə-ˈrī-ə-ˌdē How to pronounce Planariidae (audio)
: a large family of small soft-bodied usually leaf-shaped flatworms of the order Tricladida that are almost all free-living in fresh water and often have well-developed eyespots see planaria

Dictionary Entries Near Planariidae

Cite this Entry

“Planariidae.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Planariidae. Accessed 20 May. 2024.

Love words? Need even more definitions?

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