Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Plantswater lilyˈwater ˌlily noun (plural water lilies) [countable] HBPa plant that grows in water, with large white or pink flowersExamples from the Corpuswater lily• Fountains have an adverse effect on water lily growth.• Suddenly it is a stone water lily. ldoceonline.com