| 单词 | spiral |
| 释义 | spiral (once / 952 pages) 1n 2nadj 3v A spiral is a coil or curl, like the shape of a piece of hair wound around your finger, a Slinky toy, or a corkscrew. A curve forming a series of circles that become gradually larger or smaller is one kind of spiral. You can also use the word as a verb when something moves in a spiral shape: "Then the wind died and I watched my kite spiral down to the ground." The origin of spiral is the Medieval Latin spiralis, which means "winding or coiling," from a Greek root: speira, "coil, twist, or wreath." WORD FAMILYspiral: spiraled, spiraling, spiralled, spiralling, spirally, spirals USAGE EXAMPLESMany galaxies of stars form spirals, where relatively few stars in the outer arms orbit around a dense mass of stars at the centre. The Guardian(Jan 01, 2017) In the middle panel, around a childhood photograph, a spiraling text in the shape of a fingerprint chronicles events in Mr. Rauschenberg’s life. New York Times(Dec 31, 2016) Mr Woolfe subsequently left the party, saying it was "ungovernable" and in a "death spiral". BBC(Dec 30, 2016) 1 1n a structure consisting of something wound in a continuous series of loops Syn|Hypo|Hyper coil, helix, volute, whorl hank a coil of rope or wool or yarn skeincoils of worsted yarn construction, structure a thing constructed; a complex entity constructed of many parts 2n a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle Syn|Hypo|Hyper helix double helix a pair of parallel helices intertwined about a common axis curve, curved shape the trace of a point whose direction of motion changes 3n flying downward in a helical path with a large radius Hyper rotary motion, rotation the act of rotating as if on an axis 4n a continuously accelerating change in the economy 2Hypo|Hyper inflationary spiral an episode of inflation in which prices and wages increase at an increasing rate and currency rapidly loses value deflationary spiralan episode of deflation in which prices and wages decrease at an increasing rate and currency gains in value economic process any process affecting the production and development and management of material wealth 1n a plane curve traced by a point circling about the center but at increasing distances from the center Hyper curve, curved shape the trace of a point whose direction of motion changes 2n ornament consisting of a curve on a plane that winds around a center with an increasing distance from the center Syn|Hyper volute decoration, ornament, ornamentation something used to beautify 3adj in the shape of a coil 3Syn coiling, helical, spiraling, turbinate, volute, voluted, whorled coiled curled or wound (especially in concentric rings or spirals) 1v move in a spiral or zigzag course Syn|Hyper corkscrew turn change orientation or direction, also in the abstract sense 2v to wind or move in a spiral course Syn|Hyper coil, gyrate turn change orientation or direction, also in the abstract sense 3v form a spiral The path spirals up the mountain Hyper curve, twist, wind extend in curves and turns |
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