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Meaning of coccyx

coc•cyx

Pronunciation: (kok'siks), [key]
— pl. coc•cy•ges
  1. a small triangular bone forming the lower extremity of the spinal column in humans, consisting of four ankylosed rudimentary vertebrae. See diag. under
  2. a corresponding part in certain animals.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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