spi·ral 
(spīrəl)
(spīrəl)n.
1.
a. A curve on a plane that winds around a fixed center point at a continuously increasing or decreasing distance from the point.
b. A three-dimensional curve that turns around an axis at a constant or continuously varying distance while moving parallel to the axis; a helix.
c. Something having the form of such a curve: a spiral of black smoke.
2. Printing A spiral binding.
3. The course or flight path of an object rotating on its longitudinal axis.
4. A continuously accelerating increase or decrease: the wage-price spiral.
adj.
1. Of or resembling a spiral.
2. Circling around a center at a continuously increasing or decreasing distance.
3. Coiling around an axis in a constantly changing series of planes; helical.
4. Printing Relating to or having a spiral binding: a spiral notebook.
v. spi·raled, spi·ral·ing, spi·rals also spi·ralled or spi·ral·ling
v.intr.
1. To take a spiral form or course.
2. To rise or fall with steady acceleration.
v.tr.
To cause to take a spiral form or course.
[Medieval Latin spīrālis, of a spiral, from Latin spīra, coil; see SPIRE2.]
spi·rali·ty (spī-rălĭ-tē) n.
spiral·ly adv.
- Pick's disease
- pick someone's brain
- pick (someone's)brain/brains
- pick (someone's) brain/brains
- pick someone's brains
- pick (someone) to pieces
- pick someone to pieces
- pick to pieces
- pick up
- pickup
- pick up on
- pick-up stick
- pickup truck
- pick way
- Pickwickian
- picky
- picloram
- picnic
- picnicker
- picnicky
- Pico
- pico-
- Pico de
- Pico de
- pico de gallo