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in zoology: see insectinsect,
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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in astronomy, one of the natural satellites, or moons, of NeptuneNeptune,
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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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved.


(nÿ -ad) A small satellite of Neptune, discovered in 1989. See Table 2, backmatter.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a stage in the development of some insects (stoneflies, mayflies, and dragonflies). Naiads are aquatic forms. The analogous stage in the development of other arthropods is the nymph.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


A satellite of Neptune orbiting at a mean distance of 30,000 miles (48,000 kilometers) with a period of 7.1 hours, and a diameter of about 34 miles (54 kilometers).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


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)
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Nyad had vowed to find a way, and for her triumphant effort, she wore a suit and mask that protected her from stings.
"When I would stand on that shore over in Cuba and look out at the horizon, I knew that what was in front of me was going to be at least two, probably more like two-and-a-half nonstop days in the open ocean, with all kinds of obstacles," Nyad told ( TVGuide .
Nyad's accomplishment is of a magnitude that if she chooses she can set her own rules.
But as 2010 neared, Nyad, approaching 60, yearned again to do something extreme, something beyond her previous accomplishments.
Leakes is one of the celebrities picked for the upcoming season of "Dancing With the Stars." Leakes will be paired with Tony Dovolani on "Dancing With the Stars" and joined by Olympic ice dancing gold medalists Meryl Davis and Charlie White, actor Billy Dee Williams, swimmer Diana Nyad and game show host Drew Carey.
The question was prompted by elite swimmer Diana Nyad's appearance on Super Soul Sunday, where Oprah Winfrey told Nyad she wasn't an atheist because the swimmer says she's moved to tears by the universe and sees God as the "love of humanity." Combining survey data and the fact that people can, and do, call themselves whatever they damned well please, the answer Cragun arrives at is that spiritual atheists exist.
New York, Oct 25 ( ANI ): 64-year old endurance swimmer Diana Nyad will donate the money she raised during her 48-hour swim in Herald Square to relief groups in the Rockaways and Staten Island for people affected by Superstorm Sandy.
DIANA NYAD/SWIMS CUBA-FLORIDA: Diana Nyad, 64, is an American author, journalist, and long-distance swimmer noted for her world-record endurance championships.
EXHAUSTED supergran Diana Nyad is hauled from the water as her latest marathon swim ends in heartbreak.
Summary: Swimmer Diana Nyad has abandoned her third attempt to swim from Cuba to Florida after being stung in the face and eyes by jellyfish.
For Diana Nyad, that stretch of shark-infested water equates to about 65 continuous hours of solitude, if all goes well--no rest, no physical contact with another person, no sound or movement except for the rhythmic kick-stroke-breathe, kick-stroke-breathe.
Unfortunately, I can offer only an approximate rhythmic reconstruction of M 4.5.1-2: so 'nyad vrttam upakarisyamanah // yajnavalkyo maitreyiti hovaca a.