inward-moving

from WordNet (r) 3.0 (2006)

inward-moving
    adj 1: moving or directed toward the center or axis, especially
           when spinning or traveling in a curve

from The Collaborative International Dictionary of English v.0.48

inward-moving \inward-moving\ adj.
   moving or directed toward the center or axis, especially when
   spinning or traveling in a curve.
   [WordNet 1.5]

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