Etymology : Middle English
Pronunciation : shärk
Function : noun
Date : 15th century
1. large predatory fish; crook, villain; one who loans money at a high rate of interest. 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.].
2. (zo?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.
3. a rapacious, artful person; a sharper. [colloq.].
4. trickery; fraud; petty rapine; as, to live upon the shark. [obs.].
5. Any one of numerous species of elasmobranch fishes of the order Plagiostomi, found in all seas.
6. A rapacious, artful person; a sharper.
7. Trickery; fraud; petty rapine; as, to live upon the shark.
8. To pick or gather indiscriminately or covertly.
9. To play the petty thief; to practice fraud or trickery; to swindle.
10. To live by shifts and stratagems. any of numerous elongate mostly marine carnivorous fishes with heterocercal caudal fins and tough skin covered with small toothlike scales a person who is unusually skilled in certain ways; "a card shark" a person who is ruthless and greedy and dishonest hunt shark play the shark; act with trickery.
11. The form shark can also be used as the plural form for meaning 1..
12. A shark is a very large fish. Some sharks have very sharp teeth and may attack people.
13. disapproval If you refer to a person as a shark, you disapprove of them because they trick people out of their money by giving bad advice about buying, selling, or investments. Beware the sharks when you are making up your mind how to invest. see also:
loan shark. Any of more than 300 species of predatory cartilaginous fish (order Selachii). An ancient animal, it has changed little in 100 million years. The skin typically is dull gray and tough and has toothlike scales. Most sharks have a muscular, asymmetrical, upturned tail; pointed fins; a pointed snout; and sharp triangular teeth. Sharks have no swim bladder and must swim perpetually to keep from sinking. Most species bear living young. Several species can be dangerous to humans (e.g., great white shark, hammerhead shark, sand shark, tiger shark); smaller ones, called topes, hounds, and dogfishes, are fished commercially. See also basking shark, mackerel shark, mako shark, thresher shark, whale shark. basking shark great white shark white shark hammerhead shark mackerel shark mako shark nurse shark sand shark thresher shark tiger shark whale shark.