Medical Dictionary

Planariidae

noun plural Plan·a·ri·idae \ ˌplan-ə-ˈrī-ə-ˌdē \

medical Definition of Planariidae

: 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

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