sulcus

  1. Noun.  (anatomy) a furrow or groove in an organ or a tissue.
  2. Noun.  (anatomy) any of the grooves that mark the convolutions of the surface of the brain.
  3. Noun.  (planetology) subparallel grooves and ditches formed by geological processes.

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This entry was last updated on RefTopia from its source on 3/20/2012.