[{"Bold_text": "noun", "List Items": ["(sometimes initial capital letter)Classical Mythology.any of a class of nymphs presiding over rivers and springs.", "the juvenile form of the dragonfly, damselfly, or mayfly.", "a female swimmer, especially an expert one.", "Botany.a plant of the genus Najas,having narrow leaves and solitary flowers.", "Entomology.an aquatic nymph.", "a freshwater mussel."]}]