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 for some time-related variable.

   isochrones of urban development, isochrones of equal travel time

   • 2013, Raymond S. Bradley, Paleoclimatology: Reconstructing Climates of the Quaternary, page 420:

     Isopoll maps can be reinterpreted to show the migration of a particular genus or ecotone through time by isochrones (equal time lines).

2. (mathematics) A semicubical parabola.

Related terms

• isochronous

See also

• isochron

French

Pronunciation

• IPA^(key): /i.zɔ.kʁɔn/

• Audio:

  (file)

Adjective

isochrone (plural isochrones)

1. isochrone

Further reading

• “isochrone”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.