[1] : The Collaborative International Dictionary of English v.0.48

shark \shark\ shaumrk, 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. zool. any one of numerous species of elasmobranch fishes
      of the order plagiostomi, found in all seas.
      1913 webster

   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 carcharodon rondeleti
         of tropical seas, and the great blue shark
         carcharhinus glaucus syn. prionace glauca 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 carcharodon atwoodi is
         thought by some to be a variety, or the young, of
         carcharodon carcharias. the dusky shark
         carcharhinus obscurus is a common species on the
         coast of the united states of moderate size and not
         dangerous. it feeds on shellfish and bottom fishes.
         1913 webster

   note: the original 1913 webster also mentioned a "smaller
         blue shark c. caudatus", but this species could not
         be found mentioned on the web august 2002. the
         following is a list of atlantic ocean sharks:
                        
         common and scientific names of atlantic sharks
                        
         from "our living oceans 1995" published by the
         national printing office:
         nmfs. 1999. our living oceans. report on the status of
         u.s. living marine resources, 1999. u.s. dep. commer.,
         noaa tech. memo. nmfs-f/spo-41, on-line version,
         http://spo.nwr.noaa.gov/olo99.htm.
         the following list is found at at
         http://spo.nwr.noaa.gov/app5.pdf
         1 pelagic sharks
         thresher shark alopias vulpinus
         bigeye thresher alopias superciliosus
         oceanic whitetip shark carcharhinus longimanus
         sevengill shark heptrachias perlo
         sixgill shark hexanchus griseus
         bigeye sixgill shark hexanchus vitulus
         shortfin mako isurus oxyrinchus
         longfin mako isurus paucus
         porbeagle lamna nasus
         blue shark prionace glauca
         2large coastal sharks
         sandbar shark carcharhinus plumbeus
         reef shark carcharhinus perezi
         blacktip shark carcharhinus limbatus
         dusky shark carcharhinus obscurus
         spinner shark carcharhinus brevipinna
         silky shark carcharhinus falciformis
         bull shark carcharhinus leucas
         bignose shark carcharhinus altimus
         galapagos shark carcharhinus galapagensis
         night shark carcharhinus signatus
         white shark carcharodon carcharias
         basking shark cetorhinus maximus
         tiger shark galeocerdo cuvier
         nurse shark ginglymostoma cirratum
         lemon shark negaprion brevirostris
         ragged-tooth shark odontaspis ferox
         whale shark rhincodon typus
         scalloped hammerhead sphyrna lewini
         great hammerhead sphyrna mokarran
         smooth hammerhead sphyrna zygaena
         3 small coastal sharks
         finetooth shark carcharhinus isodon
         blacknose shark carcharhinus acronotus
         atlantic sharpnose shark rhizoprionodon erraenovae
         caribbean sharpnose shark rhizoprionodon porosus
         bonnethead sphyrna tiburo
         atlantic angel shark squatina dumeril
         pjc

   2. a rapacious, artful person; a sharper. colloq.
      1913 webster

   3. trickery; fraud; petty rapine; as, to live upon the shark.
      obs. --south.
      1913 webster

   basking 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.
      1913 webster
see also:
shark plagiostomi carcharhinus carcharodon carcharodon carcharias carcharodon rondeleti 
carcharhinus glaucus prionace glauca carcharodon atwoodi carcharhinus obscurus c. caudatus 
alopias vulpinus alopias superciliosus carcharhinus longimanus heptrachias perlo hexanchus griseus 
hexanchus vitulus isurus oxyrinchus isurus paucus lamna nasus carcharhinus plumbeus 
carcharhinus perezi carcharhinus limbatus carcharhinus brevipinna carcharhinus falciformis carcharhinus leucas 
carcharhinus altimus carcharhinus galapagensis carcharhinus signatus cetorhinus maximus galeocerdo cuvier 
ginglymostoma cirratum negaprion brevirostris odontaspis ferox rhincodon typus sphyrna lewini 
sphyrna mokarran sphyrna zygaena carcharhinus isodon carcharhinus acronotus rhizoprionodon erraenovae 
rhizoprionodon porosus sphyrna tiburo squatina dumeril basking shark liver shark 
nurse shark oil shark sand shark tiger shark basking 
liver dogfish houndfish notidanian tope 
gray shark hammer-headed shark hammerhead port jackson shark cestraciont 
shark barrow shark ray angel fish angel thrasher shark 
thresher shark thrasher whale shark rhinodon typicus 

[2] : The Collaborative International Dictionary of English v.0.48

tiger \ti"ger\, n. oe. tigre, f. tigre, l. tigris, gr. ti`gris;
   probably of persian origin; cf. zend tighra pointed, tighri
   an arrow, per. timacr; perhaps akin to e. stick, v. t.; --
   probably so named from its quickness.
   1. a very large and powerful carnivore felis tigris
      native of southern asia and the east indies. its back and
      sides are tawny or rufous yellow, transversely striped
      with black, the tail is ringed with black, the throat and
      belly are nearly white. when full grown, it equals or
      exceeds the lion in size and strength. called also royal
      tiger, and bengal tiger.
      1913 webster

   2. fig.: a ferocious, bloodthirsty person.
      1913 webster

            as for heinous tiger, tamora.         --shak.
      1913 webster

   3. a servant in livery, who rides with his master or
      mistress. --dickens.
      1913 webster

   4. a kind of growl or screech, after cheering; as, three
      cheers and a tiger. colloq. u. s.
      1913 webster

   5. a pneumatic box or pan used in refining sugar.
      1913 webster

   american tiger. zool.
      a the puma.
      b the jaguar.

   clouded tiger zool., a handsome striped and spotted
      carnivore felis macrocelis or felis marmorata native
      of the east indies and southern asia. its body is about
      three and a half feet long, and its tail about three feet
      long. its ground color is brownish gray, and the dark
      markings are irregular stripes, spots, and rings, but
      there are always two dark bands on the face, one extending
      back from the eye, and one from the angle of the mouth.
      called also tortoise-shell tiger.

   mexican tiger zool., the jaguar.

   tiger beetle zool., any one of numerous species of active
      carnivorous beetles of the family cicindelidae. they
      usually inhabit dry or sandy places, and fly rapidly.

   tiger bittern. zool. see sun bittern, under sun.

   tiger cat zool., any one of several species of wild cats
      of moderate size with dark transverse bars or stripes
      somewhat resembling those of the tiger.

   tiger flower bot., an iridaceous plant of the genus
      tigridia as tigridia conchiflora, tigridia
      grandiflora, etc. having showy flowers, spotted or
      streaked somewhat like the skin of a tiger.

   tiger grass bot., a low east indian fan palm chamaerops
      ritchieana. it is used in many ways by the natives. --j.
      smith dict. econ. plants.

   tiger lily. bot. see under lily.

   tiger moth zool., any one of numerous species of moths of
      the family arctiadae which are striped or barred with
      black and white or with other conspicuous colors. the
      larvae are called woolly bears.

   tiger shark zool., a voracious shark galeocerdo
      tigrinus syn. galeocerdo maculatus more or less barred
      or spotted with yellow. it is found in both the atlantic
      and indian ocean. called also zebra shark.

   tiger shell zool., a large and conspicuously spotted
      cowrie cypraea tigris; -- so called from its fancied
      resemblance to a tiger in color and markings. called also
      tiger cowrie.

   tiger snake zool., either of two very venomous snakes of
      tasmania and australia, notechis scutatis and notechis
      ater, which grow up to 5 feet in length.

   tiger wolf zool., the spotted hyena hyaena crocuta.
      

   tiger wood, the variegated heartwood of a tree machaerium
      schomburgkii found in guiana.
      1913 webster
see also:
felis tigris royal tiger bengal tiger american tiger clouded tiger felis macrocelis 
felis marmorata tortoise-shell tiger mexican tiger tiger beetle cicindelidae 
tiger bittern sun bittern sun tiger cat tiger flower 
tigridia tigridia conchiflora tigridia grandiflora tiger grass chamaerops ritchieana 
tiger lily lily tiger moth arctiadae woolly bears 
tiger shark galeocerdo tigrinus galeocerdo maculatus zebra shark tiger shell 
cypraea tigris tiger cowrie tiger snake notechis scutatis notechis ater 
tiger wolf hyaena crocuta tiger wood machaerium schomburgkii 

[3] : WordNet (r) 2.0

tiger shark
     n : large dangerous warm-water shark with striped or spotted
         body syn: galeocerdo cuvieri
see also:
galeocerdo cuvieri 

Tiger Shark >> T Words
Tiger Shark, definition of term: Tiger Shark
tiger+shark_pag1.html

Tiger >> T Words
Tiger, definition of term: Tiger
tiger_pag1.html

Shark >> S Words
Shark, definition of term: Shark
shark_pag1.html

Tiger Team >> T Words
Tiger Team, definition of term: Tiger Team
tiger+team_pag1.html

Tiger Snake >> T Words
Tiger Snake, definition of term: Tiger Snake
tiger+snake_pag1.html

Tiger Cat >> T Words
Tiger Cat, definition of term: Tiger Cat
tiger+cat_pag1.html

Nurse Shark >> N Words
Nurse Shark, definition of term: Nurse Shark
nurse+shark_pag1.html

Whale Shark >> W Words
Whale Shark, definition of term: Whale Shark
whale+shark_pag1.html

White Shark >> W Words
White Shark, definition of term: White Shark
white+shark_pag1.html

Sand Shark >> S Words
Sand Shark, definition of term: Sand Shark
sand+shark_pag1.html

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