Definition of Spiral. Meaning of Spiral. Synonyms of Spiral
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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 hyperbolic spiral
Fermat's spiral lituus logarithmic spiral Cornu spiral spiral
of Theodorus Fibonacci Spiral
) The involute...
- Spiral galaxies
form a class
of galaxy originally described
by Edwin Hubble
in his 1936 work The Realm
of the Nebulae
and, as such, form part of the Hubble...
: From the Book of Saw (or simply Spiral
) is a 2021 American
horror-thriller film directed
by Josh Stolberg
- The spiral model
is a risk-driven software development process
on the unique
of a given
project, the spiral model guides
- The Archimedean spiral
as the arithmetic spiral
) is a spiral named after
the 3rd-century BC Gr**** mathematician
Archimedes. It is the locus...
- In geometry, a golden spiral
is a logarithmic spiral whose growth factor
is φ, the golden
ratio. That is, a golden spiral
- Look up spiral staircase
in Wiktionary, the free dictionary. A spiral staircase
is a type of stairway characterized
by its helical shape Spiral
, equiangular spiral
, or growth spiral
is a self-similar spiral curve
that often appears
in nature. The first
a logarithmic spiral
- that the Milky
Way is just one of many galaxies. The Milky
Way is a barred spiral galaxy
with a D25 isophotal diameter estimated
at 26.8 ± 1.1 kilop****cs...
- Spiral Dynamics
(SD) is a model
of the evolutionary development
of individuals, organizations, and societies. It was initially developed
by Don Edward...
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