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isochrone

isochrone

9.9
A line on a map that connects places where an event happens at the same time
  • noun
  • /ˈaɪsəˌkroʊn/
  • Specialized
translation icon : isochrón
  • An isochrone shows all locations reached by a rescue team within a certain time frame.

Examples

  • An isochrone can help visualize public transport accessibility.

  • The isochrone map showed travel times across the city.

  • Geologists used isochrones to map the simultaneous deposition of volcanic ash across the region.

  • The meteorologists studied the isochrone on the storm track map to determine wind speed progression.

  • An isochrone indicates all areas that can be reached from a central point in the same amount of time.

  • The city planners used an isochrone to assess the accessibility of different neighborhoods to public services.

  • Scientists created an isochrone to illustrate the spread of a pollutant over time in the water supply.

Synonyms

isochron
vsisochrone
  • Specialized
9.9

A line on a map that shows places where rocks formed at the same time

connects points where a particular event occurs at the same time
isoline
vsisochrone
  • Specialized
8.0

A line on a map that joins places with the same height or temperature

marks locations where a particular event occurs simultaneously
isogram
vsisochrone
  • Specialized
9.9

A line on a map that connects points with the same value, like temperature

shows places where the same event happens at once
isopleth
vsisochrone
  • Specialized
9.9

A line on a map that connects places with the same value, like temperature

indicates where the same event occurs across locations at one time
isometric line
vsisochrone
  • Specialized
7.2

A line on a map connecting points that have the same value, like temperature or pressure

focuses on simultaneous event occurrence rather than equal measurements

Surface Forms

isochrone singular
isochrones plural

Morphology

isochrone = isochron (semi-transparent) = iso + chron

Formed from Greek combining forms iso- (equal) + chron- (time), the literal 'equal-time' meaning is clear in technical contexts but requires knowledge of these combining forms and is not obvious to an average B1 learner.

Etymology

Isochrone comes from the Greek parts iso- meaning 'equal' and chron meaning 'time', the same root you see in chronology. So an isochrone is a line that joins places where something happens at the 'same time', which is why maps use isochrones to show locations reached in the same time.