Naiad, in astronomy

Naiad, in astronomy, one of the natural satellites, or moons, of Neptune Neptune, in astronomy, 8th planet from the sun at a mean distance of about 2.8 billion mi (4.5 billion km) with an orbit lying between those of Uranus and the dwarf planet Pluto; its period of revolution is about 165 years.
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naiad, in zoology: see insect insect, invertebrate animal of the class Insecta of the phylum Arthropoda . Like other arthropods, an insect has a hard outer covering, or exoskeleton, a segmented body, and jointed legs. Adult insects typically have wings and are the only flying invertebrates.
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naiad

1. Greek myth a nymph dwelling in a lake, river, spring, or fountain

2. the aquatic larva of the dragonfly, mayfly, and related insects

3. any of certain freshwater mussels of the genus Unio

4. any monocotyledonous submerged aquatic plant of the genus Naias (or Najas), having narrow leaves and small flowers: family Naiadaceae (or Najadaceae)

naiad (redirected from Hydriades)

Naiad, in astronomy

naiad
(redirected from Hydriades)