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2 definitions found
 for Chain hook
From The Collaborative International Dictionary of English v.0.48 :

  Hook \Hook\ (h[oo^]k; 277), n. [OE. hok, AS. h[=o]c; cf. D.
     haak, G. hake, haken, OHG. h[=a]ko, h[=a]go, h[=a]ggo, Icel.
     haki, Sw. hake, Dan. hage. Cf. Arquebuse, Hagbut, Hake,
     Hatch a half door, Heckle.]
     1. A piece of metal, or other hard material, formed or bent
        into a curve or at an angle, for catching, holding, or
        sustaining anything; as, a hook for catching fish; a hook
        for fastening a gate; a boat hook, etc.
        [1913 Webster]
     2. That part of a hinge which is fixed to a post, and on
        which a door or gate hangs and turns.
        [1913 Webster]
     3. An implement for cutting grass or grain; a sickle; an
        instrument for cutting or lopping; a billhook.
        [1913 Webster]
              Like slashing Bentley with his desperate hook.
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     4. (Steam Engin.) See Eccentric, and V-hook.
        [1913 Webster]
     5. A snare; a trap. [R.] --Shak.
        [1913 Webster]
     6. A field sown two years in succession. [Prov. Eng.]
        [1913 Webster]
     7. pl. The projecting points of the thigh bones of cattle; --
        called also hook bones.
        [1913 Webster]
     8. (Geog.) A spit or narrow cape of sand or gravel turned
        landward at the outer end; as, Sandy Hook in New Jersey.
        [Webster 1913 Suppl. +PJC]
     9. (Sports) The curving motion of a ball, as in bowling or
        baseball, curving away from the hand which threw the ball;
        in golf, a curving motion in the direction of the golfer
        who struck the ball.
     10. (Computers) A procedure within the encoding of a computer
         program which allows the user to modify the program so as
         to import data from or export data to other programs.
     By hook or by crook, one way or other; by any means, direct
        or indirect. --Milton. "In hope her to attain by hook or
        crook." --Spenser.
     Off the hook, freed from some obligation or difficulty; as,
        to get off the hook by getting someone else to do the job.
     Off the hooks, unhinged; disturbed; disordered. [Colloq.]
        "In the evening, by water, to the Duke of Albemarle, whom
        I found mightly off the hooks that the ships are not gone
        out of the river." --Pepys.
     On one's own hook, on one's own account or responsibility;
        by one's self. [Colloq. U.S.] --Bartlett.
     To go off the hooks, to die. [Colloq.] --Thackeray.
     Bid hook, a small boat hook.
     Chain hook. See under Chain.
     Deck hook, a horizontal knee or frame, in the bow of a
        ship, on which the forward part of the deck rests.
     Hook and eye, one of the small wire hooks and loops for
        fastening together the opposite edges of a garment, etc.
     Hook bill (Zool.), the strongly curved beak of a bird.
     Hook ladder, a ladder with hooks at the end by which it can
        be suspended, as from the top of a wall.
     Hook motion (Steam Engin.), a valve gear which is reversed
        by V hooks.
     Hook squid, any squid which has the arms furnished with
        hooks, instead of suckers, as in the genera
        Enoploteuthis and Onychteuthis.
     Hook wrench, a wrench or spanner, having a hook at the end,
        instead of a jaw, for turning a bolthead, nut, or
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Chain \Chain\ (ch[=a]n), n. [F. cha[^i]ne, fr. L. catena. Cf.
     1. A series of links or rings, usually of metal, connected,
        or fitted into one another, used for various purposes, as
        of support, of restraint, of ornament, of the exertion and
        transmission of mechanical power, etc.
        [1913 Webster]
              [They] put a chain of gold about his neck. --Dan. v.
        [1913 Webster]
     2. That which confines, fetters, or secures, as a chain; a
        bond; as, the chains of habit.
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              Driven down
              To chains of darkness and the undying worm.
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     3. A series of things linked together; or a series of things
        connected and following each other in succession; as, a
        chain of mountains; a chain of events or ideas.
        [1913 Webster]
     4. (Surv.) An instrument which consists of links and is used
        in measuring land.
        [1913 Webster]
     Note: One commonly in use is Gunter's chain, which consists
           of one hundred links, each link being seven inches and
           ninety-two one hundredths in length; making up the
           total length of rods, or sixty-six, feet; hence, a
           measure of that length; hence, also, a unit for land
           measure equal to four rods square, or one tenth of an
           [1913 Webster]
     5. pl. (Naut.) Iron links bolted to the side of a vessel to
        bold the dead-eyes connected with the shrouds; also, the
        [1913 Webster]
     6. (Weaving) The warp threads of a web. --Knight.
        [1913 Webster]
     Chain belt (Mach.), a belt made of a chain; -- used for
        transmitting power.
     Chain boat, a boat fitted up for recovering lost cables,
        anchors, etc.
     Chain bolt
        (a) (Naut.) The bolt at the lower end of the chain plate,
            which fastens it to the vessel's side.
        (b) A bolt with a chain attached for drawing it out of
     Chain bond. See Chain timber.
     Chain bridge, a bridge supported by chain cables; a
        suspension bridge.
     Chain cable, a cable made of iron links.
     Chain coral (Zool.), a fossil coral of the genus
        Halysites, common in the middle and upper Silurian
        rocks. The tubular corallites are united side by side in
        groups, looking in an end view like links of a chain. When
        perfect, the calicles show twelve septa.
     Chain coupling.
        (a) A shackle for uniting lengths of chain, or connecting
            a chain with an object.
        (b) (Railroad) Supplementary coupling together of cars
            with a chain.
     Chain gang, a gang of convicts chained together.
     Chain hook (Naut.), a hook, used for dragging cables about
        the deck.
     Chain mail, flexible, defensive armor of hammered metal
        links wrought into the form of a garment.
     Chain molding (Arch.), a form of molding in imitation of a
        chain, used in the Normal style.
     Chain pier, a pier suspended by chain.
     Chain pipe (Naut.), an opening in the deck, lined with
        iron, through which the cable is passed into the lockers
        or tiers.
     Chain plate (Shipbuilding), one of the iron plates or
        bands, on a vessel's side, to which the standing rigging
        is fastened.
     Chain pulley, a pulley with depressions in the periphery of
        its wheel, or projections from it, made to fit the links
        of a chain.
     Chain pumps. See in the Vocabulary.
     Chain rule (Arith.), a theorem for solving numerical
        problems by composition of ratios, or compound proportion,
        by which, when several ratios of equality are given, the
        consequent of each being the same as the antecedent of the
        next, the relation between the first antecedent and the
        last consequent is discovered.
     Chain shot (Mil.), two cannon balls united by a shot chain,
        formerly used in naval warfare on account of their
        destructive effect on a ship's rigging.
     Chain stitch. See in the Vocabulary.
     Chain timber. (Arch.) See Bond timber, under Bond.
     Chain wales. (Naut.) Same as Channels.
     Chain wheel. See in the Vocabulary.
     Closed chain, Open chain (Chem.), terms applied to the
        chemical structure of compounds whose rational formul[ae]
        are written respectively in the form of a closed ring (see
        Benzene nucleus, under Benzene), or in an open
        extended form.
     Endless chain, a chain whose ends have been united by a
        [1913 Webster]

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