The physics principle whereby objects are forced to move out from the center is called centrifugal force. This apparent force is activated by something moving in a curved direction; the heavier the object the stronger the force.

The word centrifugal is from the Latin centrum, "center," and fugere, "to flee," so the word means "center-fleeing." Centrifugal force was studied by physicists as far back as 1629, and the term itself was used by Sir Isaac Newton, in its Latin guise vis centrifuga, in 1687.

Definitions of centrifugal
  1. adjective
    tending to move away from a center
    centrifugal force”
    away from an axis, as in a flower cluster in which the oldest flowers are in the center, the youngest near the edge
    moving or directed away from center, especially when spinning or traveling in a curve
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    tending to move toward a center
    toward an axis, as in a sunflower; the oldest flowers are near the edge, the youngest in the center
    moving or directed toward the center or axis, especially when spinning or traveling in a curve
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  2. adjective
    tending away from centralization, as of authority
    “the division of Europe into warring blocs produces ever-increasing centrifugal stress”
    decentralising, decentralizing
    tending away from a central point
  3. adjective
    conveying information to the muscles from the CNS
    synonyms: motor
    efferent, motorial
    of nerves and nerve impulses; conveying information away from the CNS
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