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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.
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
1. To take a spiral form or course.
2. To rise or fall with steady acceleration.
To cause to take a spiral form or course.

[Medieval Latin spīrālis, of a spiral, from Latin spīra, coil; see spire2.]

spi·ral′i·ty (spī-răl′ĭ-tē) n.
spi′ral·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adv.1.spirally - with spirals; "spirally fluted handles"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
hurtigere og hurtigere
í spíral
helezonî olarak


[ˈspaɪərəlɪ] ADVen espiral
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005


advin einer Spirale, spiralförmig
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007


(ˈspaiərəl) adjective
1. coiled round like a spring, with each coil the same size as the one below. a spiral staircase.
2. winding round and round, usually tapering to a point. a spiral shell.
1. an increase or decrease, or rise or fall, becoming more and more rapid (eg in prices).
2. a spiral line or object. A spiral of smoke rose from the chimney.
verbpast tense, past participle ˈspiralled , (American) ˈspiraled
to go or move in a spiral, especially to increase more and more rapidly. Prices have spiralled in the last six months.
ˈspirally adverb
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in classic literature ?
Towards the stern of the boat it is spirally coiled away in the tub, not like the worm-pipe of a still though, but so as to form one round, cheese-shaped mass of densely bedded sheaves, or layers of concentric spiralizations, without any hollow but the heart, or minute vertical tube formed at the axis of the cheese.
The corridor terminated in a hall, large, lofty, and square; a glass door on one side showed within a long narrow refectory, with tables, an armoire, and two lamps; it was empty; large glass doors, in front, opened on the playground and garden; a broad staircase ascended spirally on the opposite side; the remaining wall showed a pair of great folding-doors, now closed, and admitting: doubtless, to the classes.
The next moment a delicate wreath of smoke curls spirally into the air, the heap of dusty particles glows with fire, and Kory-Kory, almost breathless, dismounts from his steed.
For a hundred feet the steps wound spirally up, until at a sudden turning Tarzan came into a narrow cleft between two rocky walls.
In Arctic North America [1] the Indians catch the Varying Hare by walking spirally round and round it, when on its form: the middle of the day is reckoned the best time, when the sun is high, and the shadow of the hunter not very long.
Propelled by the perception of theatre as an oevento which opresentso a perspective on and of the world, she examines these proliferating and diverse responses to spirally uncertainties and precarities on the twenty-first-century stage as political zeitgeist.
SSAB Europe has tube production in Hameenlinna, Lappohja and Pulkkila, as well as spirally welded tube fabrication in Oulainen and section production in Toijala.
The material flows though the vertical grinding chamber of the Turbofiner spirally from below to above, passing through several micro-whirl zones with increasing intensity of the air whirls.
The systems are supplied on a block basis with spirally mounted membrane elements.
The paper titled "Stress-Strain Behavior of Steel Fiber-Reinforced Concrete Cylinders Spirally Confined with Steel Bars" is authored by B.
The high-performance membrane elements in the Lewabrane range consist of spirally wound thin-film composite membranes that were developed specifically for industrial water treatment.