isotherm

isotherm
/uy"seuh therrm'/, n.
1. Meteorol. 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.
[1855-60; back formation from ISOTHERMAL]

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      line drawn on a map or chart joining points with the same temperature. Isotherms are commonly used in meteorology to show the distribution of temperature at the Earth's surface or on a chart indicating constant level or constant pressure. They are also used to show the time variation of temperature with height in the atmosphere or with depth in soil or water; the characteristics of heat flow into soil, for example, are easily visualized from a graph showing temperature as a function of depth and time. A convenient way to compare thermal climates is to plot the temperature for each location as a function of time of day (vertical axis) and time of year (horizontal axis).

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Universalium. 2010.

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Look at other dictionaries:

  • Isotherm — I so*therm, n. [Iso + Gr. ? heat, fr. ? hot.] 1. (Phys. Geog.) A line connecting or marking points on the earth s surface having the same temperature. This may be the temperature for a given time of observation, or the mean temperature for a year …   The Collaborative International Dictionary of English

  • isotherm — 1860, from Fr. isotherme (Humboldt, 1817), from Gk. iso (see ISO (Cf. iso )) + therme heat (see THERMAL (Cf. thermal)) …   Etymology dictionary

  • isotherm — ► NOUN ▪ a line on a map or diagram connecting points having the same temperature. DERIVATIVES isothermal adjective & noun. ORIGIN from Greek isos equal + therm heat …   English terms dictionary

  • isotherm — [ī′səthʉrm΄] n. [Fr isotherme < iso , ISO + Gr thermē, heat < thermos, hot: see WARM] 1. a line on a map connecting points on the earth s surface having the same mean temperature or the same temperature at a given time 2. a line… …   English World dictionary

  • Isotherm — An isotherm may refer to: *A type of contour line or surface connecting points of equal temperature *An isothermal process in a thermodynamic cycle.disambigAn isotherm is a line or surface that connects points of equal atmospheric temperature …   Wikipedia

  • isotherm — UK [ˈaɪsəʊˌθɜː(r)m] / US [ˈaɪsəˌθɜrm] noun [countable] Word forms isotherm : singular isotherm plural isotherms science a line on a weather map that connects places where the temperature is the same …   English dictionary

  • Isotherm — Isotherme Zustandsänderung im p v Diagramm Die isotherme Zustandsänderung ist eine thermodynamische Zustandsänderung, bei der die Temperatur unverändert bleibt. Bei einer Verdichtung eines Gases muss also die Kompressionswärme abgeführt bzw. bei… …   Deutsch Wikipedia

  • isotherm — izoterma statusas T sritis Standartizacija ir metrologija apibrėžtis Vienodos temperatūros būsenų kreivė. atitikmenys: angl. isotherm vok. Isotherme, f rus. изотерма, f pranc. isotherme, f …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • isotherm — izoterma statusas T sritis chemija apibrėžtis Vienodos temperatūros būsenų kreivė. atitikmenys: angl. isotherm rus. изотерма …   Chemijos terminų aiškinamasis žodynas

  • isotherm — izoterma statusas T sritis fizika atitikmenys: angl. isotherm; isothermal; line of constant temperature vok. Isotherme, f; Wärmegleiche, f rus. изотерма, f; изотермическая линия, f; линия равных температур, f pranc. courbe d’égale température, f; …   Fizikos terminų žodynas

  • isotherm — izoterma statusas T sritis ekologija ir aplinkotyra apibrėžtis Termodinaminės diagramos kreivė, vaizduojanti vyksmą, kurio metu temperatūra nekinta. atitikmenys: angl. isotherm vok. Isotherme, f; Temperaturgleiche, f; Wärmelinie, f rus. изотерма …   Ekologijos terminų aiškinamasis žodynas

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