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floating heart

noun
1.
any of certain aquatic plants belonging to the genus Nymphoides, of the gentian family, especially N. aquatica, having floating, more or less heart-shaped leaves and a cluster of small, white, five-petaled flowers.
2.
a related plant, Nymphoides cordata, of North America, having a cluster of white flowers and round or somewhat oval leaves that are purple beneath.
Origin
1855-1860
1855-60, Americanism
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for floating heart
  • These non-native species have crowded out much of the native bladderwort and floating heart once common in it.
  • Parrotfeather, water primrose and yellow floating heart are rooted plants that invade shallow water and aquatic margins.
British Dictionary definitions for floating heart

floating heart

noun
1.
any perennial aquatic freshwater plant of the genus Nymphoides, esp N. lacunosum, having floating heart-shaped leaves: family Menyanthaceae
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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