striation

  1. Noun.  (countable) (mineralogy) One of a number of parallel grooves and ridges in a rock or rocky deposit, formed by repeated twinning or cleaving of crystals.
  2. Noun.  (countable) (geomorphology) One of a number of parallel scratch lines in rock outcrops, formed when glaciers dragged rocks across the landscape.
  3. Noun.  The action of marking with a stria.
  4. Noun.  The result of being marked with a stria.
  5. Noun.  (context, roofing) a parallel series of small grooves, channels, or impressions typically within a metal roof panel used to help reduce the potential for oil-canning.

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