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Meaning of lumbar

lum•bar

Pronunciation: (lum'bur, -bär), [key]
— adj.
  1. of or pertaining to the loin or loins.
—n.
  1. a lumbar vertebra, artery, or the like. See illus. under
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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