Definitions:

1. A family of aquatic and wetland plants, known for their importance in freshwater ecosystems. NOUN
   • The study of Zannichelliaceae is essential for understanding the diversity and dynamics of freshwater ecosystems.
2. Alternative classification for some genera included in Potamogetonaceae. NOUN
   • Zannichelliaceae plants possess a creeping rhizome that enables them to anchor in muddy or sandy substrates.

Synonyms:

• eelgrass family
• horned pondweed family
• water-thyme family