• Noun

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

    Adjective

    running continuously around a fixed point or center while constantly receding from or approaching it; coiling in a single plane
    a spiral curve.
    coiling around a fixed line or axis in a constantly changing series of planes; helical.
    of or of the nature of a spire or coil.
    bound with a spiral binding; spiral-bound
    a spiral notebook.

    Verb (used without object)

    to take a spiral form or course.
    to advance or increase steadily; rise
    Costs have been spiraling all year.
    Aeronautics . to fly an airplane through a spiral course.

    Verb (used with object)

    to cause to take a spiral form or course.

    tác giả


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