isogon

  1. Noun.  (mathematics) An equiangular polygon.
  2. Noun.  (cartography, meteorology) A line of equal or constant wind direction on a graph or chart, such as a weather map.
  3. Noun.  (cartography, navigation) A line of equal or constant magnetic declination on a chart; an isogonic line.

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