Definition of isobar in English:

isobar

noun ˈʌɪsə(ʊ)bɑːˈaɪsəˌbɑr

1Meteorology
A line on a map connecting points having the same atmospheric pressure at a given time or on average over a given period.
〔气象〕等压线
Example sentencesExamples
- Near the ground the winds are deflected across the contours, or isobars, towards the low pressure, due to friction.
- Secret Meteorological Office charts show the alarming swirl of isobars converging in black lines over the Channel.
- The tight spacing of the isobars indicates strong northerly winds, averaging some 50 km/h over much of Victoria.
- The balance of forces is lost and the flow crosses the isobars (lines of equal air pressure) towards the low pressure.
- When isobars on a weather chart are close together, it will be a blustery day…
1. 1.1Physics A curve or formula representing a physical system at constant pressure.
  Example sentencesExamples
  No discontinuous change occurs in either the compression isotherm or the heating isobar.
  The heating isobar for the transformed monolayers remained virtually superimposable on the curve for films that had experienced no rapid compression.
  For the heated film, the substantial reversion of the transformed film to the original behavior occurred without any discontinuous change in area or in the slope of the heating isobar.
2Chemistry
Each of two or more isotopes of different elements, with the same atomic weight.
〔物理〕同量异位素

Derivatives

isobaric

adjective ʌɪsə(ʊ)ˈbarɪkˌaɪsəˈbɑrɪk

A phase transition produced by isothermally increasing surface pressure can often be reversed during isobaric heating.
Example sentencesExamples
- Conversely, crust above the detachment undergoes nearly isobaric heating accompanied by brittle faulting with little or no uplift.
- For all simulations, isothermal and isobaric conditions were assumed.
- This diagram is the same as the one above except that the major pressure and wind zones have been replaced by a typical isobaric weather map.
- However, the nature of this isobaric degassing is fundamentally different from that which occurs during decompression.

Origin

Mid 19th century: from Greek isobaros 'of equal weight', from isos 'equal' + baros 'weight'.

Definition of isobar in US English:

isobar

nounˈīsəˌbärˈaɪsəˌbɑr

1Meteorology
A line on a map connecting points having the same atmospheric pressure at a given time or on average over a given period.
〔气象〕等压线
Example sentencesExamples
- Near the ground the winds are deflected across the contours, or isobars, towards the low pressure, due to friction.
- When isobars on a weather chart are close together, it will be a blustery day…
- The balance of forces is lost and the flow crosses the isobars (lines of equal air pressure) towards the low pressure.
- The tight spacing of the isobars indicates strong northerly winds, averaging some 50 km/h over much of Victoria.
- Secret Meteorological Office charts show the alarming swirl of isobars converging in black lines over the Channel.
1. 1.1Physics A curve or formula representing a physical system at constant pressure.
  Example sentencesExamples
  For the heated film, the substantial reversion of the transformed film to the original behavior occurred without any discontinuous change in area or in the slope of the heating isobar.
  No discontinuous change occurs in either the compression isotherm or the heating isobar.
  The heating isobar for the transformed monolayers remained virtually superimposable on the curve for films that had experienced no rapid compression.
2Chemistry
Each of two or more isotopes of different elements, with the same atomic weight.
〔物理〕同量异位素

Origin

Mid 19th century: from Greek isobaros ‘of equal weight’, from isos ‘equal’ + baros ‘weight’.

词汇	isobar
释义	Definition of isobar in English: isobar noun ˈʌɪsə(ʊ)bɑːˈaɪsəˌbɑr 1Meteorology A line on a map connecting points having the same atmospheric pressure at a given time or on average over a given period. 〔气象〕等压线 Example sentencesExamples Near the ground the winds are deflected across the contours, or isobars, towards the low pressure, due to friction. Secret Meteorological Office charts show the alarming swirl of isobars converging in black lines over the Channel. The tight spacing of the isobars indicates strong northerly winds, averaging some 50 km/h over much of Victoria. The balance of forces is lost and the flow crosses the isobars (lines of equal air pressure) towards the low pressure. When isobars on a weather chart are close together, it will be a blustery day… 1.1Physics A curve or formula representing a physical system at constant pressure. Example sentencesExamples No discontinuous change occurs in either the compression isotherm or the heating isobar. The heating isobar for the transformed monolayers remained virtually superimposable on the curve for films that had experienced no rapid compression. For the heated film, the substantial reversion of the transformed film to the original behavior occurred without any discontinuous change in area or in the slope of the heating isobar. 2Chemistry Each of two or more isotopes of different elements, with the same atomic weight. 〔物理〕同量异位素 Derivatives isobaric adjective ʌɪsə(ʊ)ˈbarɪkˌaɪsəˈbɑrɪk A phase transition produced by isothermally increasing surface pressure can often be reversed during isobaric heating. Example sentencesExamples Conversely, crust above the detachment undergoes nearly isobaric heating accompanied by brittle faulting with little or no uplift. For all simulations, isothermal and isobaric conditions were assumed. This diagram is the same as the one above except that the major pressure and wind zones have been replaced by a typical isobaric weather map. However, the nature of this isobaric degassing is fundamentally different from that which occurs during decompression. Origin Mid 19th century: from Greek isobaros 'of equal weight', from isos 'equal' + baros 'weight'. Definition of isobar in US English: isobar nounˈīsəˌbärˈaɪsəˌbɑr 1Meteorology A line on a map connecting points having the same atmospheric pressure at a given time or on average over a given period. 〔气象〕等压线 Example sentencesExamples Near the ground the winds are deflected across the contours, or isobars, towards the low pressure, due to friction. When isobars on a weather chart are close together, it will be a blustery day… The balance of forces is lost and the flow crosses the isobars (lines of equal air pressure) towards the low pressure. The tight spacing of the isobars indicates strong northerly winds, averaging some 50 km/h over much of Victoria. Secret Meteorological Office charts show the alarming swirl of isobars converging in black lines over the Channel. 1.1Physics A curve or formula representing a physical system at constant pressure. Example sentencesExamples For the heated film, the substantial reversion of the transformed film to the original behavior occurred without any discontinuous change in area or in the slope of the heating isobar. No discontinuous change occurs in either the compression isotherm or the heating isobar. The heating isobar for the transformed monolayers remained virtually superimposable on the curve for films that had experienced no rapid compression. 2Chemistry Each of two or more isotopes of different elements, with the same atomic weight. 〔物理〕同量异位素 Origin Mid 19th century: from Greek isobaros ‘of equal weight’, from isos ‘equal’ + baros ‘weight’.
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