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Possible definitions for kiack

bracken
Any fern of the genus Pteridium, represented by a single species (P. aquilinum) with 12 varieties found throughout the world in temperate and tropical regions. It has a perennial black rootstock, which creeps extensively underground and at intervals sends up fronds that may reach a height of 15 ft (5 m) or more. Though they die in autumn, the fronds often remain standing throughout winter, in some areas affording cover for game. Humans use the fronds for thatching and as fodder.


grackle
Any of several songbird species (in the family Icteridae) having iridescent black plumage and a long tail; also called crow-blackbird. Grackles use their stout, pointed bill to snap up insects, dig grubs from the soil, and kill small vertebrates, incl. fishes and baby birds; they can also crack hard seeds. The common grackle (Quiscalus quiscula) of N. America is about 12 in. (30 cm) long. The males of two Cassidus species (boat-tailed and great-tailed grackles) have a long, deeply keeled tail; these species are found in arid lands of the SW U.S. to Peru and in salt marshes from New Jersey to Texas, where they are locally called jackdaws. See also blackbird, mynah.


jack
In practical mechanics, portable hand-operated device for raising heavy weights through short distances, exerting great pressures, or holding assembled work firmly in position. The ratio of the load to the amount of force applied to the handle can be made quite high by using a gear or screw to regulate the upward extension. A ratchet allows a heavy weight to be raised in short successive stages. Though limited by the requirements of portability and ease of manual operation, jacks may lift, or exert a force of, several tons. A familiar example is the automobile jack, used to raise one end of a car to change a tire.

Any of more than 150 species of fishes (family Carangidae, order Perciformes) found in temperate and tropical portions of the Atlantic, Pacific, and Indian oceans and occasionally in fresh or brackish water. Though body size and shape vary greatly, many species have small scales that create a smooth appearance, a laterally compressed body, rows of large spiky scales along the side near the tail fin, and a deeply forked tail. Many have a bluish green, silvery, or yellowish sheen. Jacks are important commercially and are favored sport fishes. See also amberjack.

In practical mechanics, portable hand-operated device for raising heavy weights through short distances, exerting great pressures, or holding assembled work firmly in position. The ratio of the load to the amount of force applied to the handle can be made quite high by using a gear or screw to regulate the upward extension. A ratchet allows a heavy weight to be raised in short successive stages. Though limited by the requirements of portability and ease of manual operation, jacks may lift, or exert a force of, several tons. A familiar example is the automobile jack, ...

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