plural noun Val·lis·ne·ri·a·ce·ae

Definition of Vallisneriaceae

in some classifications

  1. :  a family comprising monocotyledonous aquatic herbs (order Naiadales) that are distinguished by having flowers with the tube of the perianth more or less adnate to the ovary and the carpels united in fruit and that are now usually included in Hydrocharitaceae



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Origin and Etymology of vallisneriaceae

New Latin Vallisneria, type genus + -aceae

Seen and Heard

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a rounded knoll or a ridge of ice

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