submerged aquatic plant having narrow leaves and small flowers; of fresh or brackish water
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(Greek mythology) a nymph of lakes and springs and rivers and fountains
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Naiad \Na"iad\ (n[=a]"y[a^]d; 277), n. [L. naias, -adis, na["i]s, -idis, a water nymph, Gr nai:a`s, nai:`s, fr. na`ein to flow: cf. F. na["i]ade. Cf. {Naid}.] 1. (Myth.) A water nymph; one of the lower female divinities, fabled to preside over some body of fresh water, as a lake, river, brook, or fountain.
2. (Zo["o]l.) Any species of a tribe ({Naiades}) of freshwater bivalves, including {Unio}, {Anodonta}, and numerous allied genera; a river mussel.
3. (Zo["o]l) One of a group of butterflies. See {Nymph}.
4. (Bot.) Any plant of the order {Naiadace[ae]}, such as eelgrass, pondweed, etc.
nymph \nymph\ (n[i^]mf), n. [L. nympha nymph, bride, young woman, Gr. ny`mfh: cf. F. nymphe. Cf. {Nuptial}.] 1. (Class. Myth.) A goddess of the mountains, forests, meadows, or waters.
Where were ye, nymphs, when the remorseless deep Closed o'er the head of your loved Lycidas? --Milton.
2. Hence: A lovely young girl; a maiden; a damsel.
Nymph, in thy orisons Be all my sins remembered. --Shak.
3. (Zo["o]l.) The pupa of an insect; a chrysalis.
4. (Zo["o]l.) Any one of a subfamily (Najades) of butterflies including the purples, the fritillaries, the peacock butterfly, etc.; -- called also {naiad}.