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3 definitions found
 for Spiral spring
From The Collaborative International Dictionary of English v.0.48 :

  Spring \Spring\, n. [AS. spring a fountain, a leap. See
     Spring, v. i.]
     1. A leap; a bound; a jump.
        [1913 Webster]
              The prisoner, with a spring, from prison broke.
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     2. A flying back; the resilience of a body recovering its
        former state by its elasticity; as, the spring of a bow.
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     3. Elastic power or force.
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              Heavens! what a spring was in his arm! --Dryden.
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     4. An elastic body of any kind, as steel, India rubber, tough
        wood, or compressed air, used for various mechanical
        purposes, as receiving and imparting power, diminishing
        concussion, regulating motion, measuring weight or other
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     Note: The principal varieties of springs used in mechanisms
           are the spiral spring (Fig. a), the coil spring
           (Fig. b), the elliptic spring (Fig. c), the
           half-elliptic spring (Fig. d), the volute spring,
           the India-rubber spring, the atmospheric spring,
           [1913 Webster]
     5. Any source of supply; especially, the source from which a
        stream proceeds; an issue of water from the earth; a
        natural fountain. "All my springs are in thee." --Ps.
        lxxxvii. 7. "A secret spring of spiritual joy." --Bentley.
        "The sacred spring whence right and honor streams." --Sir
        J. Davies.
        [1913 Webster]
     6. Any active power; that by which action, or motion, is
        produced or propagated; cause; origin; motive.
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              Our author shuns by vulgar springs to move
              The hero's glory, or the virgin's love. --Pope.
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     7. That which springs, or is originated, from a source; as:
        (a) A race; lineage. [Obs.] --Chapman.
        (b) A youth; a springal. [Obs.] --Spenser.
        (c) A shoot; a plant; a young tree; also, a grove of
            trees; woodland. [Obs.] --Spenser. Milton.
            [1913 Webster]
     8. That which causes one to spring; specifically, a lively
        tune. [Obs.] --Beau. & Fl.
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     9. The season of the year when plants begin to vegetate and
        grow; the vernal season, usually comprehending the months
        of March, April, and May, in the middle latitudes north of
        the equator. "The green lap of the new-come spring."
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     Note: Spring of the astronomical year begins with the vernal
           equinox, about March 21st, and ends with the summer
           solstice, about June 21st.
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     10. The time of growth and progress; early portion; first
         stage; as, the spring of life. "The spring of the day."
         --1 Sam. ix. 26.
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               O how this spring of love resembleth
               The uncertain glory of an April day. --Shak.
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     11. (Naut.)
         (a) A crack or fissure in a mast or yard, running
             obliquely or transversely.
         (b) A line led from a vessel's quarter to her cable so
             that by tightening or slacking it she can be made to
             lie in any desired position; a line led diagonally
             from the bow or stern of a vessel to some point upon
             the wharf to which she is moored.
             [1913 Webster]
     Air spring, Boiling spring, etc. See under Air,
        Boiling, etc.
     Spring back (Bookbinding), a back with a curved piece of
        thin sheet iron or of stiff pasteboard fastened to the
        inside, the effect of which is to make the leaves of a
        book thus bound (as a ledger or other account or blank
        book) spring up and lie flat.
     Spring balance, a contrivance for measuring weight or force
        by the elasticity of a spiral spring of steel.
     Spring beam, a beam that supports the side of a paddle box.
        See Paddle beam, under Paddle, n.
     Spring beauty.
         (a) (Bot.) Any plant of the genus Claytonia, delicate
             herbs with somewhat fleshy leaves and pretty
             blossoms, appearing in springtime.
         (b) (Zool.) A small, elegant American butterfly ({Erora
             laeta) which appears in spring. The hind wings of
             the male are brown, bordered with deep blue; those of
             the female are mostly blue.
     Spring bed, a mattress, under bed, or bed bottom, in which
        springs, as of metal, are employed to give the required
     Spring beetle (Zool.), a snapping beetle; an elater.
     Spring box, the box or barrel in a watch, or other piece of
        mechanism, in which the spring is contained.
     Spring fly (Zool.), a caddice fly; -- so called because it
        appears in the spring.
     Spring grass (Bot.), vernal grass. See under Vernal.
     Spring gun, a firearm discharged by a spring, when this is
        trodden upon or is otherwise moved.
     Spring hook (Locomotive Engines), one of the hooks which
        fix the driving-wheel spring to the frame.
     Spring latch, a latch that fastens with a spring.
     Spring lock, a lock that fastens with a spring.
     Spring mattress, a spring bed.
     Spring of an arch (Arch.) See Springing line of an arch,
        under Springing.
     Spring of pork, the lower part of a fore quarter, which is
        divided from the neck, and has the leg and foot without
        the shoulder. [Obs.] --Nares.
              Sir, pray hand the spring of pork to me. --Gayton.
     Spring pin (Locomotive Engines), an iron rod fitted between
        the springs and the axle boxes, to sustain and regulate
        the pressure on the axles.
     Spring rye, a kind of rye sown in the spring; -- in
        distinction from winter rye, sown in autumn.
     Spring stay (Naut.), a preventer stay, to assist the
        regular one. --R. H. Dana, Jr.
     Spring tide, the tide which happens at, or soon after, the
        new and the full moon, and which rises higher than common
        tides. See Tide.
     Spring wagon, a wagon in which springs are interposed
        between the body and the axles to form elastic supports.
     Spring wheat, any kind of wheat sown in the spring; -- in
        distinction from winter wheat, which is sown in autumn.
        [1913 Webster] Springald

From The Collaborative International Dictionary of English v.0.48 :

  Spiral \Spi"ral\, a. [Cf. F. spiral. See Spire a winding
     1. Winding or circling round a center or pole and gradually
        receding from it; as, the spiral curve of a watch spring.
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     2. Winding round a cylinder or imaginary axis, and at the
        same time rising or advancing forward; winding like the
        thread of a screw; helical.
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     3. (Geom.) Of or pertaining to a spiral; like a spiral.
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     Spiral gear, or Spiral wheel (Mach.), a gear resembling
        in general a spur gear, but having its teeth cut at an
        angle with its axis, or so that they form small portions
        of screws or spirals.
     Spiral gearing, a kind of gearing sometimes used in light
        machinery, in which spiral gears, instead of bevel gears,
        are used to transmit motion between shafts that are not
     Spiral operculum, an operculum whih has spiral lines of
     Spiral shell, any shell in which the whorls form a spiral
        or helix.
     Spiral spring. See the Note under Spring, n., 4.
        [1913 Webster]

From WordNet (r) 3.0 (2006) :

  spiral spring
      n 1: a spring that is wound like a spiral

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