isobar

See also Isobar

English

Etymology

From Ancient Greek ἴσος (isos, “equal”) + βάρος (baros, “weight”)

Noun

Wikipedia 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, 'isobar' most often refers to a line drawn through all points of equal atmospheric pressure along 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 map of the air unaffected by surface heating or cooling. The pattern of isobars has always been a main feature of surface chart analysis. 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 (eo)
• Finnish: isobaari (fi)
• German: Isobare (de) f
• Greek: ισοβαρής (el) (isovarís) f

• Ido: izobaro (io)
• Indonesian: isobar (id)
• Irish: iseabar (ga) m
• Russian: изобара (ru) (izobára) f

either of two nuclides

• Czech: izobar (cs) m
• German: Isobar (de) n

• Irish: iseabar (ga) m
• Russian: изобар (ru) (izobár) m

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.

Translations to be checked

• Italian: isobara f (all)

See also

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

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German

Adjective

isobar (not comparable)

1. isobaric

Declension

    Declension of isobar

gender		singular			plural
		masculine	feminine	neuter	all genders
predicative		er ist isobar	sie ist isobar	es ist isobar	sie sind isobar
strong declension (without article)	nominative	isobarer	isobare	isobares	isobare
	genitive	isobaren	isobarer	isobaren	isobarer
	dative	isobarem	isobarer	isobarem	isobaren
	accusative	isobaren	isobare	isobares	isobare
weak declension (with definite article)	nominative	der isobare	die isobare	das isobare	die isobaren
	genitive	des isobaren	der isobaren	des isobaren	der isobaren
	dative	dem isobaren	der isobaren	dem isobaren	den isobaren
	accusative	den isobaren	die isobare	das isobare	die isobaren
mixed declension (with indefinite article)	nominative	ein isobarer	eine isobare	ein isobares	(keine) isobaren
	genitive	eines isobaren	einer isobaren	eines isobaren	(keiner) isobaren
	dative	einem isobaren	einer isobaren	einem isobaren	(keinen) isobaren
	accusative	einen isobaren	eine isobare	ein isobares	(keine) isobaren