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64 definitions found

From The Collaborative International Dictionary of English v.0.44 : [ gcide ]


  Spiral \Spi"ral\, n. [Cf. F. spirale. See Spiral, a.]
     1. (Geom.) A plane curve, not re["e]ntrant, described by a
        point, called the generatrix, moving along a straight line
        according to a mathematical law, while the line is
        revolving about a fixed point called the pole. Cf.
        Helix.
        [1913 Webster]
  
     2. Anything which has a spiral form, as a spiral shell.
        [1913 Webster]
  
     Equiangular spiral,a plane curve which cuts all its
        generatrices at the same angle. Same as Logarithmic
        spiral, under Logarithmic.
  
     Spiral of Archimedes, a spiral the law of which is that the
        generatrix moves uniformly along the revolving line, which
        also moves uniformly.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.44 : [ gcide ]


  Spiral \Spi"ral\, a. [Cf. F. spiral. See Spire a winding
     line.]
     1. Winding or circling round a center or pole and gradually
        receding from it; as, the spiral curve of a watch spring.
        [1913 Webster]
  
     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.
        [1913 Webster]
  
     3. (Geom.) Of or pertaining to a spiral; like a spiral.
        [1913 Webster]
  
     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
        parallel.
  
     Spiral operculum, an operculum whih has spiral lines of
        growth.
  
     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 Webster's Revised Unabridged Dictionary (1913) : [ web1913 ]


  Spiral \Spi"ral\, n. [Cf. F. spirale. See Spiral, a.]
     1. (Geom.) A plane curve, not re["e]ntrant, described by a
        point, called the generatrix, moving along a straight line
        according to a mathematical law, while the line is
        revolving about a fixed point called the pole. Cf.
        Helix.
  
     2. Anything which has a spiral form, as a spiral shell.
  
     Equiangular spiral,a plane curve which cuts all its
        generatrices at the same angle. Same as Logarithmic
        spiral, under Logarithmic.
  
     Spiral of Archimedes, a spiral the law of which is that the
        generatrix moves uniformly along the revolving line, which
        also moves uniformly.

From Webster's Revised Unabridged Dictionary (1913) : [ web1913 ]


  Spiral \Spi"ral\, a. [Cf. F. spiral. See Spire a winding
     line.]
     1. Winding or circling round a center or pole and gradually
        receding from it; as, the spiral curve of a watch spring.
  
     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.
  
     3. (Geom.) Of or pertaining to a spiral; like a spiral.
  
     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
        parallel.
  
     Spiral operculum, an operculum whih has spiral lines of
        growth.
  
     Spiral shell, any shell in which the whorls form a spiral
        or helix.
  
     Spiral spring. See the Note under Spring, n., 4.

From WordNet (r) 2.0 : [ wn ]


  spiral
       adj : in the shape of a coil [syn: coiling, helical, spiraling,
              volute, voluted, whorled, turbinate]
       n 1: a plane curve traced by a point circling about the center
            but at ever-greater distances from it
       2: a curve that lies on the surface of a cylinder or cone and
          cuts the element at a constant angle [syn: helix]
       3: ornament consisting of a curve on a plane that winds around
          a center with an increasing distance from the center [syn:
           volute]
       4: a structure consisting of something wound in a continuous
          series of loops; "a coil of rope" [syn: coil, volute,
          whorl, helix]
       5: flying downward in a helical path with a large radius
       v 1: to wind or move in a spiral course; "the muscles and nerves
            of his fine drawn body were coiling for action"; "black
            smoke coiling up into the sky"; "the young people
            gyrated on the dance floor" [syn: gyrate, coil]
       2: form a spiral; "The path spirals up the mountain"
       3: move in a spiral or zigzag course [syn: corkscrew]
       [also: spiralling, spiralled]

From Greek Wiktionary: All languages (2023-07-27) : [ dictinfo.com:wikt-el-ALL-2023-07-27 ]


  spiral
     Γαλλικά a.
     ελικοειδής, σπειροειδής, σπιράλ

From English Wiktionary: All languages (2023-07-27) : [ dictinfo.com:wikt-en-ALL-2023-07-27 ]


  spiral
     Danish n.
     (l en spiral)
     French a.
     (l en spiral)
     French n.
     (l en spiral)
     Norwegian Bokmål n.
     1 a (l en spiral), (l en coil)
     2 a (l en coil) (q: contraceptive device)
     Romanian a.
     (l en spiral)

From English Wiktionary: English language only (2023-07-27) : [ dictinfo.com:wikt-en-en-2023-07-27 ]


  spiral
     a.
     helical, like a spiral.
     n.
     1 (lb en geometry) A curve that is the locus of a point that rotates
  about a fixed point while continuously increasing its distance from that
  point. Category:en:Curves
     2 (lb en informal) A helix.
     3 A self-sustaining process with a lot of momentum involved, so it is
  difficult to accelerate or stop it at once.
     4 (lb en rail) A section of track that forms a circle and crosses
  over itself, used for gaining height in mountainous territory.
     vb.
     1 (lb en intransitive) To move along the path of a spiral or helix.
     2 (lb en transitive) To cause something to spiral.
     3 (lb en figuratively intransitive) To increase continually.

From English Wiktionary: Western, Greek, and Slavonic languages only (2023-07-27) : [ dictinfo.com:wikt-en-Western_Greek_Slavonic-2023-07-27 ]


  spiral
     Danish n.
     (l en spiral)
     French a.
     (l en spiral)
     French n.
     (l en spiral)
     Norwegian Nynorsk n.
     1 a (l en spiral), (l en coil)
     2 a (l en coil) (q: contraceptive device)
     Swedish n.
     1 c a (l en spiral)
     2 c an intrauterine device, a coil (contraceptive device)

From English Wiktionary: Western languages only (2023-07-27) : [ dictinfo.com:wikt-en-Western-2023-07-27 ]


  spiral
     Danish n.
     (l en spiral)
     French a.
     (l en spiral)
     French n.
     (l en spiral)
     Norwegian Nynorsk n.
     1 a (l en spiral), (l en coil)
     2 a (l en coil) (q: contraceptive device)

From Finnish Wiktionary: All languages (2023-07-27) : [ dictinfo.com:wikt-fi-ALL-2023-07-27 ]


  spiral
     Englanti n.
     spiraali

From Swedish Wiktionary: All languages (2023-07-27) : [ dictinfo.com:wikt-sv-ALL-2023-07-27 ]


  spiral
     n.
     1 (tagg: geometri) tvådimensionell kurva som kan tänkas uppkomma då
  en punkt rör sig kring ett origo samtidigt som avståndet till detta
  origo minskar eller ökar, t.ex. värdemängden till en funktion
  <math>r mapsto (r, phi) = (r, a r)</math>
     2 tredimensionell kurva som kan tänkas uppkomma då ett snöre träs
  flera varv kring en cylinder, mer precist värdemängden till en funktion
  <math>z mapsto (r, phi, z) = (r_0, a z, z)</math>
     3 (tagg: medicin) preventivmedel

From Swedish Wiktionary: Swedish language only (2023-07-27) : [ dictinfo.com:wikt-sv-sv-2023-07-27 ]


  spiral
     n.
     1 (tagg: geometri) tvådimensionell kurva som kan tänkas uppkomma då
  en punkt rör sig kring ett origo samtidigt som avståndet till detta
  origo minskar eller ökar, t.ex. värdemängden till en funktion
  <math>r mapsto (r, phi) = (r, a r)</math>
     2 tredimensionell kurva som kan tänkas uppkomma då ett snöre träs
  flera varv kring en cylinder, mer precist värdemängden till en funktion
  <math>z mapsto (r, phi, z) = (r_0, a z, z)</math>
     3 (tagg: medicin) preventivmedel

From Danish-English FreeDict Dictionary ver. 0.3.1 : [ freedict:dan-eng ]


  spiral /spʔiʁˈ?ɑl/ 
  spiral

From English-Afrikaans FreeDict Dictionary ver. 0.1.3 : [ freedict:eng-afr ]


  spiral /spˈaɪəɹəl/
  spiraal

From English-Arabic FreeDict Dictionary ver. 0.6.3 : [ freedict:eng-ara ]


  Spiral /spˈaɪəɹəl/
  اللولب

From English-български език FreeDict+WikDict dictionary ver. 2023.05.29 : [ freedict:eng-bul ]


  spiral //ˈspaɪɹəl// 
  спирален
  helical

From English-български език FreeDict+WikDict dictionary ver. 2023.05.29 : [ freedict:eng-bul ]


  spiral //ˈspaɪɹəl// 
  1. спира́ла
  geometry
  2. спирала 2.
  helix
   3.
  self-sustaining process

From English-Czech dicts.info/FreeDict Dictionary ver. 0.1.3 : [ freedict:eng-ces ]


  spiral /spˈaɪəɹəl/
  spirála

From Eurfa Saesneg, English-Welsh Eurfa/Freedict dictionary ver. 0.2.3 : [ freedict:eng-cym ]


  spiral /spˈaɪəɹəl/ 
  sbiral