Definition of Spiral. Meaning of Spiral. Synonyms of Spiral
Here you will find one or more explanations in English for the word Spiral. Also in the bottom left of the page several parts of wikipedia pages related to the word Spiral and, of course, Spiral synonyms and on the right images related to the word Spiral.
Definition of Spiral
SpiralSpiral 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.
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. SpiralSpiral 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.
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
Spiral operculum, an operculum whih has spiral lines of
Spiral shell, any shell in which the whorls form a spiral
Spiral spring. See the Note under Spring, n., 4.
Meaning of Spiral from wikipedia
- Archimedean spiral Cornu spiral
Fermat's spiral hyperbolic spiral lituus logarithmic spiral spiral
of Theodorus Fibonacci Spiral
) The involute...
- In geometry, a golden spiral
is a logarithmic spiral whose growth factor
is φ, the golden
ratio. That is, a golden spiral
- Spiral Staircase
to: The Spiral Staircase
(1946 film), an American psychological thriller
film The Spiral Staircase
(1961 film), a 1961 American...
- Spiral galaxies
form a cl**** of galaxy originally described
by Edwin Hubble
in his 1936 work The Realm
of the Nebulae
and, as such, form part of the Hubble...
- The Downward Spiral
is the second studio album
by American industrial
rock band Nine Inch Nails, released
8, 1994, by Nothing Records
- The spiral model
is a risk-driven software development process
on the unique
of a given
project, the spiral model guides
of two reasons: The wider
, the more steps
can be accommodated
. Therefore, if the spiral
in diameter, via having
- that the Milky
Way is just one of many galaxies. The Milky
Way is a barred spiral galaxy
with a diameter between
150,000 and 200,000 light-years (ly). It...
- Spiral Jetty
is an earthwork sculpture constructed
1970 that is considered
to be the most important
work of American sculptor Robert
- logarithmic spiral
, equiangular spiral
or growth spiral
is a self-similar spiral curve which often appears
in nature. The logarithmic spiral
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