What is Spiral?

Spiral definition and meaning on Dictionary terms:
Geometry. a plane curve generated by a point moving around a fixed point while constantly receding from or approaching it.
a helix.

a single circle or ring of a spiral or helical curve or object.
a spiral or helical object, formation, or form.
Aeronautics. a maneuver in which an airplane descends in a helix of small pitch and large radius, with the angle of attack within that of the normal flight range.
Football. a type of kick or pass in which the ball turns on its longer axis as it flies through the air.
Economics. a continuous increase in costs, wages, prices, etc. (inflationary spiral), or a decrease in costs, wages, prices, etc. (deflationary spiral).

running continuously around a fixed point or center while constantly receding from or approaching it; coiling in a single plane: a spiral curve.
coiling around a fixed line or axis in a constantly changing series of planes; helical.

of or of the nature of a spire or coil.
bound with a spiral binding; spiral-bound: a spiral notebook.

verb (used without object), spi