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spiral
has definitions from the fields of mathematics,geometry
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[ noun ] (mathematics,geometry) a plane curve traced by a point circling about the center but at ever-greater distances from it
Used in print (Jaroslav Pelikan, The Shape of Death: life, death and...)Not a circle , then , nor a straight_line , but a spiral represents the shape of death as Irenaeus sees it ; for a spiral has motion as_well_as recurrence . Not a circle , then , nor a straight_line , but a spiral represents the shape of death as Irenaeus sees it ; for a spiral has motion as_well_as recurrence . As represented by a spiral , history may , in_some_sense , be said to repeat itself ; yet each historical event remains unique . The first turn of the spiral is the primeval history of humanity in Adam . With this act of disobedience , and not with the inception of his individual existence , man began the downward circuit on the spiral of history , descending from the created capacity for immortality to an inescapable mortality . Related terms |
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[ verb ] to wind or move in a spiral course:" the muscles and nerves of his fine drawn body were coiling for action,", "black smoke coiling up into the sky"
Examples "the young people gyrated on the dance floor" Used in print (J. F. Vedder, "Micrometeorites", in Francis S. J...)The Poynting-Robertson effect ( Robertson , 1937 ; Wyatt and Whipple , 1950 ) , which is a retardation of the orbital motion of particles by the relativistic aberration of the repulsive_force of the impinging solar_radiation , causes the dust to spiral into the sun in times much shorter than the age of the Earth . According_to Whipple ( 1955 ) , cometary debris is sufficient to replenish the material spiraling into the sun , maintaining a fairly steady state . |
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[ noun ] (mathematics,geometry) a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle
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[ noun ] ornament consisting of a curve on a plane that winds around a center with an increasing distance from the center
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