spiral

[ spahy-ruhl ]

noun

1. Geometry. a plane curve generated by a point moving around a fixed point while constantly receding from or approaching it.
2. a helix.
3. a single circle or ring of a spiral or helical curve or object.
4. a spiral or helical object, formation, or form.
5. 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.
6. Football. a type of kick or pass in which the ball turns on its longer axis as it flies through the air.
7. Economics. a continuous increase in costs, wages, prices, etc. inflationary spiral, or a decrease in costs, wages, prices, etc. deflationary spiral.

adjective

1. running continuously around a fixed point or center while constantly receding from or approaching it; coiling in a single plane:

   a spiral curve.

2. coiling around a fixed line or axis in a constantly changing series of planes; helical.
3. of or of the nature of a spire or coil.
4. bound with a spiral binding; spiral-bound:

   a spiral notebook.

verb (used without object)

, spi·raled, spi·ral·ing or (especially British) spi·ralled, spi·ral·ling.

1. to take a spiral form or course.
2. to advance or increase steadily; rise:

   Costs have been spiraling all year.

3. Aeronautics. to fly an airplane through a spiral course.

verb (used with object)

, spi·raled, spi·ral·ing or (especially British) spi·ralled, spi·ral·ling.

1. to cause to take a spiral form or course.

spiral

/ ˈspaɪərəl /

noun

1. geometry one of several plane curves formed by a point winding about a fixed point at an ever-increasing distance from it. Polar equation of Archimedes spiral: r = a θ; of logarithmic spiral: log r = a θ; of hyperbolic spiral: r θ = a, (where a is a constant)
2. another name for helix
3. something that pursues a winding, usually upward, course or that displays a twisting form or shape
4. a flight manoeuvre in which an aircraft descends describing a helix of comparatively large radius with the angle of attack within the normal flight range Compare spin
5. economics a continuous upward or downward movement in economic activity or prices, caused by interaction between prices, wages, demand, and production

adjective

1. having the shape of a spiral

verb

1. to assume or cause to assume a spiral course or shape
2. intr to increase or decrease with steady acceleration

   wages and prices continue to spiral

Derived Forms

• ˈspirally, adverb

Other Words From

• spi·ral·i·ty [spahy-, ral, -i-tee], noun
• spiral·ly adverb
• multi·spiral adjective
• non·spiral adjective noun
• sub·spiral adjective
• sub·spiral·ly adverb
• un·spiral adjective
• un·spiral·ly adverb
• un·spiraled adjective
• un·spiralled adjective

Word History and Origins

Origin of spiral¹

1545–55; < Medieval Latin spīrālis, equivalent to Latin spīr ( a ) coil (< Greek speîra anything coiled, wreathed, or twisted; spire ² ) + -ālis -al ¹

Word History and Origins

Origin of spiral¹

C16: via French from Medieval Latin spīrālis, from Latin spīra a coil; see spire ²

Example Sentences

Add that to the Yale Budget Lab’s estimate of more than 5 percent inflation from the more extreme versions of Trump’s tariff scenarios, and you have the recipe for an inflationary spiral that would make post-pandemic price increases look like a gentle hill that we climbed happily together on a languid summer afternoon.

From Slate

She said urgent action was needed to prevent closures and the “downward spiral that will cause the arts to lose their impact”.

From BBC

With each passing year, I see and hear the patient’s spiral of worry: Am I getting more forgetful?

From Los Angeles Times

“This contrast, this conflict, this clash of lives where you have young working families just trying to breathe in the air and have some form of relief, and next to them, you have people in a downward spiral — I wanted him to see that,” Reyes said.

From Los Angeles Times

The father of a boy who was found buried in a garden in Birmingham has told a jury he went "down a spiral of conspiracy" while studying for a degree in London.

From BBC

Related Words

• circling
• coiled