Source : Webster's Revised Unabridged Dictionary (1913)

   {Sand grouse} (Zo["o]l.), any one of many species of Old
      World birds belonging to the suborder Pterocletes, and
      resembling both grouse and pigeons. Called also {rock
      grouse}, {rock pigeon}, and {ganga}. They mostly belong to
      the genus {Pterocles}, as the common Indian species ({P.
      exustus}). The large sand grouse ({P. arenarius}), the
      painted sand grouse ({P. fasciatus}), and the pintail sand
      grouse ({P. alchata}) are also found in India. See Illust.
      under {Pterocletes}.

   {Sand hill}, a hill of sand; a dune.

   {Sand-hill crane} (Zo["o]l.), the American brown crane ({Grus
      Mexicana}).

   {Sand hopper} (Zo["o]l.), a beach flea; an orchestian.

   {Sand hornet} (Zo["o]l.), a sand wasp.

   {Sand lark}. (Zo["o]l.)
      (a) A small lark ({Alaudala raytal}), native of India.
      (b) A small sandpiper, or plover, as the ringneck, the
          sanderling, and the common European sandpiper.
      (c) The Australian red-capped dotterel ({[AE]gialophilus
          ruficapillus}); -- called also {red-necked plover}.

   {Sand launce} (Zo["o]l.), a lant, or launce.

   {Sand lizard} (Zo["o]l.), a common European lizard ({Lacerta
      agilis}).

   {Sand martin} (Zo["o]l.), the bank swallow.

   {Sand mole} (Zo["o]l.), the coast rat.

   {Sand monitor} (Zo["o]l.), a large Egyptian lizard ({Monitor
      arenarius}) which inhabits dry localities.

   {Sand mouse} (Zo["o]l.), the dunlin. [Prov. Eng.]

   {Sand myrtle}. (Bot.) See under {Myrtle}.

   {Sand partridge} (Zo["o]l.), either of two small Asiatic
      partridges of the genus {Ammoperdix}. The wings are long
      and the tarsus is spurless. One species ({A. Heeji})
      inhabits Palestine and Arabia. The other species ({A.
      Bonhami}), inhabiting Central Asia, is called also {seesee
      partridge}, and {teehoo}.

   {Sand picture}, a picture made by putting sand of different
      colors on an adhesive surface.

   {Sand pike}. (Zo["o]l.)
      (a) The sauger.
      (b) The lizard fish.

   {Sand pillar}, a sand storm which takes the form of a
      whirling pillar in its progress in desert tracts like
      those of the Sahara and Mongolia.

   {Sand pipe} (Geol.), a tubular cavity, from a few inches to
      several feet in depth, occurring especially in calcareous
      rocks, and often filled with gravel, sand, etc.; -- called
      also {sand gall}.

   {Sand pride} (Zo["o]l.), a small British lamprey now
      considered to be the young of larger species; -- called
      also {sand prey}.

   {Sand pump}, in artesian well boring, a long, slender bucket
      with a valve at the bottom for raising sand from the well.
      

   {Sand rat} (Zo["o]l.), the pocket gopher.

   {Sand rock}, a rock made of cemented sand.

   {Sand runner} (Zo["o]l.), the turnstone.

   {Sand saucer} (Zo["o]l.), the mass of egg capsules, or
      o["o]thec[ae], of any mollusk of the genus {Natica} and
      allied genera. It has the shape of a bottomless saucer,
      and is coated with fine sand; -- called also {sand
      collar}.

   {Sand screw} (Zo["o]l.), an amphipod crustacean
      ({Lepidactylis arenarius}), which burrows in the sandy
      seabeaches of Europe and America.

   {Sand shark} (Zo["o]l.), an American shark ({Odontaspis
      littoralis}) found on the sandy coasts of the Eastern
      United States; -- called also {gray shark}, and {dogfish
      shark}. See Illust. under {Remora}.

   {Sand skink} (Zo["o]l.), any one of several species of Old
      World lizards belonging to the genus {Seps}; as, the
      ocellated sand skink ({Seps ocellatus}) of Southern
      Europe.

   {Sand skipper} (Zo["o]l.), a beach flea, or orchestian.

   {Sand smelt} (Zo["o]l.), a silverside.

   {Sand snake}. (Zo["o]l.)
      (a) Any one of several species of harmless burrowing
          snakes of the genus {Eryx}, native of Southern Europe,
          Africa, and Asia, especially {E. jaculus} of India and
          {E. Johnii}, used by snake charmers.
      (b) Any innocuous South African snake of the genus
          {Psammophis}, especially {P. sibilans}.

   {Sand snipe} (Zo["o]l.), the sandpiper.

   {Sand star} (Zo["o]l.), an ophiurioid starfish living on
      sandy sea bottoms; a brittle star.

   {Sand storm}, a cloud of sand driven violently by the wind.
      

   {Sand sucker}, the sandnecker.

   {Sand swallow} (Zo["o]l.), the bank swallow. See under
      {Bank}.

   {Sand tube}, a tube made of sand. Especially:
      (a) A tube of vitrified sand, produced by a stroke of
          lightning; a fulgurite.
      (b) (Zo["o]l.) Any tube made of cemented sand.
      (c) (Zo["o]l.) In starfishes, a tube having calcareous
          particles in its wall, which connects the oral water
          tube with the madreporic plate.

   {Sand viper}. (Zo["o]l.) See {Hognose snake}.

   {Sand wasp} (Zo["o]l.), any one of numerous species of
      hymenopterous insects belonging to the families
      {Pompilid[ae]} and {Spherid[ae]}, which dig burrows in
      sand. The female provisions the nest with insects or
      spiders which she paralyzes by stinging, and which serve
      as food for her young.

Shark \Shark\, n. [Of uncertain origin; perhaps through OF. fr.
   carcharus a kind of dogfish, Gr. karchari`as, so called from
   its sharp teeth, fr. ka`rcharos having sharp or jagged teeth;
   or perhaps named from its rapacity (cf. {Shark}, v. t. & i.);
   cf. Corn. scarceas.]
   1. (Zo["o]l.) Any one of numerous species of elasmobranch
      fishes of the order Plagiostomi, found in all seas.

   Note: Some sharks, as the basking shark and the whale shark,
         grow to an enormous size, the former becoming forty
         feet or more, and the latter sixty feet or more, in
         length. Most of them are harmless to man, but some are
         exceedingly voracious. The man-eating sharks mostly
         belong to the genera {Carcharhinus}, {Carcharodon}, and
         related genera. They have several rows of large sharp
         teeth with serrated edges, as the great white shark
         ({Carcharodon carcharias, or Rondeleti}) of tropical
         seas, and the great blue shark ({Carcharhinus glaucus})
         of all tropical and temperate seas. The former
         sometimes becomes thirty-six feet long, and is the most
         voracious and dangerous species known. The rare
         man-eating shark of the United States coast
         ({Charcarodon Atwoodi}) is thought by some to be a
         variety, or the young, of {C. carcharias}. The dusky
         shark ({Carcharhinus obscurus}), and the smaller blue
         shark ({C. caudatus}), both common species on the coast
         of the United States, are of moderate size and not
         dangerous. They feed on shellfish and bottom fishes.

   2. A rapacious, artful person; a sharper. [Colloq.]

   3. Trickery; fraud; petty rapine; as, to live upon the shark.
      [Obs.] --South.

   {Baskin shark}, {Liver shark}, {Nurse shark}, {Oil shark},
   {Sand shark}, {Tiger shark}, etc. See under {Basking},
      {Liver}, etc. See also {Dogfish}, {Houndfish},
      {Notidanian}, and {Tope}.

   {Gray shark}, the sand shark.

   {Hammer-headed shark}. See {Hammerhead}.

   {Port Jackson shark}. See {Cestraciont}.

   {Shark barrow}, the eggcase of a shark; a sea purse.

   {Shark ray}. Same as {Angel fish}
      (a), under {Angel}.

   {Thrasher} shark, or {Thresher shark}, a large, voracious
      shark. See {Thrasher}.

   {Whale shark}, a huge harmless shark ({Rhinodon typicus}) of
      the Indian Ocean. It becomes sixty feet or more in length,
      but has very small teeth.

Source : WordNet®

sand shark
     n : shallow-water shark with sharp jagged teeth found on both
         sides of Atlantic; sometimes dangerous to swimmers [syn:
         {sand tiger}, {Carcharias taurus}, {Odontaspis taurus}]