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4 definitions found

From: Webster's Revised Unabridged Dictionary (1913)

 Ne·pa n.  Zool. A genus of aquatic hemipterous insects.  The species feed upon other insects and are noted for their voracity; -- called also scorpion bug and water scorpion.
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From: Webster's Revised Unabridged Dictionary (1913)

 Scor·pi·on n.
 1. Zool. Any one of numerous species of pulmonate arachnids of the order Scorpiones, having a suctorial mouth, large claw-bearing palpi, and a caudal sting.
 Note: ☞ Scorpions have a flattened body, and a long, slender post-abdomen formed of six movable segments, the last of which terminates in a curved venomous sting. The venom causes great pain, but is unattended either with redness or swelling, except in the axillary or inguinal glands, when an extremity is affected. It is seldom if ever destructive of life. Scorpions are found widely dispersed in the warm climates of both the Old and New Worlds.
 2. Zool. The pine or gray lizard (Sceloporus undulatus). [Local, U. S.]
 3. Zool. The scorpene.
 4. Script. A painful scourge.
    My father hath chastised you with whips, but I will chastise you with scorpions.   --1 Kings xii. 11.
 5. Astron. A sign and constellation. See Scorpio.
 6. Antiq. An ancient military engine for hurling stones and other missiles.
 Book scorpion. Zool. See under Book.
 False scorpion. Zool. See under False, and Book scorpion.
 Scorpion bug, or Water scorpion Zool. See Nepa.
 Scorpion fly Zool., a neuropterous insect of the genus Panorpa. See Panorpid.
 Scorpion grass Bot., a plant of the genus Myosotis.  Myosotis palustris is the forget-me-not.
 Scorpion senna Bot., a yellow-flowered leguminous shrub (Coronilla Emerus) having a slender joined pod, like a scorpion's tail. The leaves are said to yield a dye like indigo, and to be used sometimes to adulterate senna.
 Scorpion shell Zool., any shell of the genus Pteroceras. See Pteroceras.
 Scorpion spiders. Zool., any one of the Pedipalpi.
 Scorpion's tail Bot., any plant of the leguminous genus Scorpiurus, herbs with a circinately coiled pod; -- also called caterpillar.
 Scorpion's thorn Bot., a thorny leguminous plant (Genista Scorpius) of Southern Europe.
 The Scorpion's Heart Astron., the star Antares in the constellation Scorpio.
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From: Webster's Revised Unabridged Dictionary (1913)

 Wa·ter scor·pi·on Zool. See Nepa.
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From: WordNet (r) 2.0

 water scorpion
      n : long-legged aquatic insect having the front legs fitted for
          seizing and holding prey and the abdomen extended by a
          long breathing tube