a long-bodied chiefly marine fish (subclass Elasmobranchii) with a cartilaginous skeleton, a prominent dorsal fin, and toothlike scales. Most sharks are predatory, although the largest kinds feed on plankton.
a small Southeast Asian freshwater fish of the minnow family with a sharklike tail, popular in aquariums.
a person who unscrupulously exploits or swindles others:
Coleby was a shark, not the sort of man to pay more when he could pay less |
property sharks want to develop 200 acres around the site. See also loan shark.
an expert in a specified field:
a pool shark.
, ark, Bach, bark, barque, Braque, Clark, clerk, dark, embark, hark, impark, Iraq
, Ladakh, Lamarck, lark, macaque, marc, mark, marque, narc, nark, Newark, park, quark, sark, shark, snark, spark, stark, Vlach
•tanbark • ringbark • stringy-bark
•Offenbach • ironbark • oligarch
•salesclerk • titlark • skylark
•meadowlark • woodlark • mudlark
•landmark • checkmark • Denmark
•benchmark • waymark • trademark
•seamark • Bismarck • telemark
•tidemark • Kitemark • pockmark
•Ostmark • hallmark • Goldmark
•Deutschmark • bookmark • footmark
•earmark • watermark • birthmark
•anarch • car park • skatepark
•exarch • Pesach • loan shark
Torpedo-shaped, cartilaginous fish found in subpolar to tropical marine waters. They have well-developed jaws, bony teeth, usually five gill slits on each side of the head, and a characteristic, lobe-shaped tail with a longer top lobe. Sharks are carnivorous, and at least ten species are known to attack humans. There are c.
250 living species. Order Selachii. See also dogfish
; whale shark
; white shark
a type for predatory behaviour; the image of the great white shark
typifying particular ferocity was established in the public mind by the film Jaws
jump the shark (of a television series) reach a point when the inclusion of far-fetched events for the sake of novelty marks a decline. The origin is said to be an episode in the long-running US television series Happy Days
, in which the central character (the Fonz) jumped over a shark when waterskiing.
large voracious seafish XVI; rapacious or extortionate person XVIII. of unkn. orig.