isobar

See also: Isobar

English

Isobar Map (PSF)

Etymology

(deprecated template usage)

From (deprecated template usage) [etyl] Ancient Greek ἴσος (ísos, “equal”) + βάρος (báros, “weight”)

Noun

isobar (plural isobars)

1. (meteorology) A line drawn on a map or chart connecting places of equal or constant pressure.
2. (nuclear physics) Either of two nuclides of different elements having the same mass number.
3. (thermodynamics) A set of points or conditions at constant pressure.

Usage notes

• (meteorology):

  In meteorology, the term isobar most often refers to a line drawn through connected points of equal atmospheric pressure on a given reference surface — such as a constant height surface (notably mean-sea-level on surface charts), the vertical plane of a synoptic cross section, or a layer of the air unaffected by surface heating or cooling. The pattern of isobars has always been a main feature of surface chart analysis. (See Surface weather analysis on Wikipedia.Wikipedia ) Until recently it was standard procedure to draw isobars at 3-millibar intervals. However, the advent of constant pressure charts for upper-air analysis has brought about the use of 4-millibar intervals to simplify the conversion from surface isobars to 1,000-millibar contour lines.

Translations

A line on a map connecting places of equal pressures

• Esperanto: izobaro
• Finnish: isobaari (fi)
• French: isobare (fr) f
• Galician: isobara f
• German: Isobare (de) f
• Greek: ισοβαρής (el) f (isovarís)
• Icelandic: þrýstilína f
• Ido: izobaro (io)
• (deprecated template usage) {{trans-mid}}
• Indonesian: isobar (id)
• Irish: iseabar m
• Italian: isobara f
• Latvian: izobāra (lv)
• Macedonian: изобара m (izobara)
• Maori: pae pēhanga, hua pēhanga
• Polish: izobara (pl) f
• Russian: изоба́ра (ru) f (izobára)
• Tagalog: guhit ng kadiin

either of two nuclides

• Czech: izobar m
• French: isobare (fr) f
• German: Isobar n
• Irish: iseabar m
• (deprecated template usage) {{trans-mid}}
• Italian: nuclide isobaro m, isobaro m
• Russian: изоба́р (ru) m (izobár)
• Tagalog: kadiin

(thermodynamics) set of points at constant pressure

• French: isobare (fr) f
• Italian: isobara f
• (deprecated template usage) {{trans-mid}}
• Tagalog: kadiin

The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

Translations to be checked

• Italian: (all) ^{(please verify)} isobara f
• (deprecated template usage) {{trans-mid}}

See also

• adiabat
• isobaric
• isochore
• isopleth
• isotherm
• isotone
• isotope

Anagrams

• Borias, boiars

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Danish

Adjective

isobar (neuter isobart, plural and definite singular attributive isobare)

1. (thermodynamics) isobaric

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German

Pronunciation

• IPA^(key): /izoˈbaːɐ̯/
• Hyphenation: iso‧bar
• Rhymes: -aːɐ̯

Adjective

isobar (not comparable)

1. isobaric

Further reading

• “isobar” in Duden online