coccyx

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coccyx

(kŏk`sĭks): see spinal columnspinal column,
bony column forming the main structural support of the skeleton of humans and other vertebrates, also known as the vertebral column or backbone. It consists of segments known as vertebrae linked by intervertebral disks and held together by ligaments.
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coccyx

[′käk‚siks]
(anatomy)
The fused vestige of caudal vertebrae forming the last bone of the vertebral column in humans and certain other primates.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

coccyx

a small triangular bone at the end of the spinal column in man and some apes, representing a vestigial tail
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Persistence of intervertebral discs between the sacral and coccygeal vertebrae is a very rare finding.
During our regular dissection classes for medical undergraduates, we noticed a high incidence of persistent intervertebral discs between the sacral and coccygeal vertebrae. We decided to conduct a systematic study and document the percentage occurrence of intervertebral discs between sacral and coccygeal vertebrae.
34 (61%) of the pelvises showed the presence of intervertebral discs between the sacral vertebrae and between the coccygeal vertebrae while 22 (39%) pelvises did not have the intervertebral discs either in the sacrum or the coccyx.