isotherm


isotherm

isotherm [ahy-suh-thurm] ExamplesWord Origin noun

  1. Meteorology. a line on a weather map or chart connecting points having equal temperature.
  2. Also called isothermal line. Physics. a curve on which every point represents the same temperature.

Origin of isotherm First recorded in 1855–60; back formation from isothermal Examples from the Web for isotherm Historical Examples of isotherm

  • This is shown by the isotherm for -4.5, which surrounds the point Q, the melting point of the ternary salt.

    The Phase Rule and Its Applications

    Alexander Findlay

  • The scale must, however, be laid perpendicularly to the isotherm, as before.

    Practical Exercises in Elementary Meteorology

    Robert DeCourcy Ward

  • Isotherm, a compound of two Greek words meaning equal temperature, is the name given in meteorology to such lines as this.

    Practical Exercises in Elementary Meteorology

    Robert DeCourcy Ward

  • Draw an isotherm east and west across the map, through your station.

    Practical Exercises in Elementary Meteorology

    Robert DeCourcy Ward

  • On a second blank weather map draw an isotherm through your station inclined from northwest to southeast.

    Practical Exercises in Elementary Meteorology

    Robert DeCourcy Ward

  • British Dictionary definitions for isotherm isotherm noun

    1. a line on a map linking places of equal temperature
    2. physics a curve on a graph that connects points of equal temperature

    Also called: isothermal, isothermal line Word Origin and History for isotherm n.

    1860, from French isotherme (Humboldt, 1817), from Greek iso- (see iso-) + therme “heat” (see thermal).

    isotherm in Science isotherm [ī′sə-thûrm′]

    1. A line drawn on a weather map connecting points that have the same temperature. Each point can mark one temperature reading or an average of several readings.

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