isochrone

English

Etymology

See iso- and chrono-.

Noun

isochrone (plural isochrones)

  1. An isoline on a map or chart connecting points that have the same value of a quantity that has dimension time.
    Isochrones of urban development
    (hydrology) (transportation planning) Isochrones of equal travel time
  2. (mathematics) A semicubical parabola.
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