'Nuphar advena' definitions:

Definition of 'Nuphar advena'

(from WordNet)
noun
Common water lily of eastern and central North America, having broad leaves and globe-shaped yellow flowers; in sluggish fresh or slightly brackish water [syn: spatterdock, cow lily, yellow pond lily, Nuphar advena]

Definition of 'Nuphar advena'

From: GCIDE
  • Spatter-dock \Spat`ter-dock`\, n. (Bot.) The common yellow water lily (Nuphar advena). [1913 Webster]