Definition of pond lily in US English:

pond lily

noun

US
  • Any of several chiefly yellow North American water lilies, especially the spatterdock, Nuphar advena.

Origin

Mid 18th century; earliest use found in Jared Eliot (1685–1763), Congregationalist minister in America, physician, and writer on agriculture. From pond + lily, after water lily.

Pronunciation

pond lily

/ˈpɒnd ˌlɪli/