centripetal

Science Dictionary
centripetal   (sěn-trĭp'ĭ-tl)  Pronunciation Key 
  1. Moving or directed toward a center or axis, particularly one around which an object is spinning.

  2. Transmitting nerve impulses toward the brain or spinal cord; afferent.

  3. Developing or progressing inward toward a center or axis, as in the growth of plant structures. For example, in the disk of the inflorescence of a sunflower, the florets near the edge open first, and the ones in the center last. Compare centrifugal.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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