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flower-de-luce

American  
[flou-er-duh-loos] / ˈflaʊ ər dəˈlus /

noun

  1. the iris flower or plant.


flower-de-luce British  
/ ˈflaʊədəˈluːs /

noun

  1. an archaic name for iris lily

"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

Etymology

Origin of flower-de-luce

1630–40; Anglicization of French fleur de lis