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perforated substance

perforated substance in Medicine

perforated substance n.
Either of the two perforated substances of the brain, designated anterior and posterior. Also called perforated space.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Historical Examples
  • The discovery of the perforated substance used for bottoming chairs and for other purposes has made its inventor a millionaire.

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