Definition of nymphaea
1
capitalized
:the type genus of the family Nymphaeaceae including numerous typical water lilies with sometimes fragrant flowers that have four green sepals and numerous petals which are as large as the sepals in the outer whorls and diminish centrally to the size and appearance of stamens and occur in white, pink to red, blue, and yellow in various members of the genus
2
plural -s
:any plant of the genus Nymphaea
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