isotherm

i·so·therm

I0256400 (ī′sə-thûrm′)n. A line drawn on a weather map or chart linking all points of equal or constant temperature.

[From French isotherme, having the same temperature : Greek īso-, iso- + Greek thermē, heat; see -therm.]

isotherm

(ˈaɪsəʊˌθɜːm) n1. (Physical Geography) a line on a map linking places of equal temperature2. (General Physics) physics a curve on a graph that connects points of equal temperature Also called: isothermal or isothermal line

i•so•therm

(ˈaɪ səˌθɜrm)

n. 1. a line on a weather map or chart connecting points having equal temperature. 2. a curve representing changes in volume and pressure while at the same temperature. [1855–60; < French; see isothermal]

i·so·therm

(ī′sə-thûrm′) A line drawn on a weather map connecting places having the same average temperature.

isotherm

A line drawn on a map linking places that have the same temperature.

Thesaurus

Noun

isotherm - (meteorology) an isogram connecting points having the same temperature at a given timeweather chart, weather map - (meteorology) a map showing the principal meteorological elements at a given time and over an extended regionmeteorology - the earth science dealing with phenomena of the atmosphere (especially weather)isarithm, isogram, isopleth - a line drawn on a map connecting points having the same numerical value of some variable

Translations

изотерма

isotherm

isotherm,

line drawn on a map of a particular region of the earth's surface connecting points of equal temperature; each point reflects one temperature reading or an average of several readings over a period of time. The relative spacing of the isothermal lines indicates a temperature gradient, i.e., the amount of temperature change over a given distance.

Isotherm

an isogram of the temperature of air, water, or soil. Most commonly drawn are isothermal maps showing mean monthly air temperature over a number of years, mean temperature for any period of time, or the temperature at a definite moment of time. To eliminate the influence of elevation when drawing isotherms, temperature values are sometimes reduced to sea level, assuming that air temperature drops an average of 0.6 °C for each 100 m of increase in elevation.

Isotherm

a line on a phase diagram depicting a process occurring at constant temperature (an isothermic process). The equation of the isotherm of an ideal gas is _pV = const, where p is the pressure and V is the volume of the gas. For a real gas the equation of an isotherm has a more complex character and becomes the equation for the isotherm of an ideal gas only at low pressures or high temperatures. On a _pV diagram, at the point of intersection of the isotherm and the adiabatic curve the latter is steeper than the isotherm. The isotherms of ferromagnets in J, H, coordinates, where J is the magnetization and H is the magnetic field intensity, have a similar character.

isotherm

[′ī·sə‚thərm] (geophysics) A line on a chart connecting all points of equal or constant temperature. (thermodynamics) A curve or formula showing the relationship between two variables, such as pressure and volume, when the temperature is held constant. Also known as isothermal.

isotherm

The line on the weather chart joining places of equal temperature. These are normally drawn for even 5°C intervals. These lines are customarily indicated in red.

isotherm

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

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Words related to isotherm

noun (meteorology) an isogram connecting points having the same temperature at a given time

Related Words