Definition: The term "genus Nymphaea" refers to a specific group (or category) of plants known as water lilies. This group belongs to the family called Nymphaeaceae. Water lilies are beautiful aquatic plants that often float on the surface of ponds and lakes.
In more advanced discussions, you might encounter "genus Nymphaea" in texts about plant taxonomy (the classification of living organisms) or ecology (the study of relationships between living things and their environment).
While "genus Nymphaea" does not have specific idioms or phrasal verbs associated with it, you might come across phrases related to nature and water lilies in literature or poetry.