isobar

I1S1O1B3A1R1

noun

A line drawn on a map or chart connecting places of equal or constant pressure.

OriginAncient Greek ἴσος →
UncommonScrabble 8
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Meanings

nounisobar (plural isobars)

plural isobars · alternative obsolete isobare

  1. climatologyA line drawn on a map or chart connecting places of equal or constant pressure.
  2. natural sciencesA set of points or conditions at constant pressure.
  3. nuclear physicsEither of two nuclides of different elements having the same mass number.

Origin

  1. Ancient Greekἴσος“equal”
  2. Englishisobar

From Ancient Greek ἴσος (ísos, “equal”) + βάρος (báros, “weight”), equivalent to iso- + bar-.

More words from Ancient Greek

Full word history & related roots →

Translations

Catalan isòbar
  • isòbarline on a map connecting places of equal pressure
Czech izobar
  • izobareither of two nuclides
Dutch isobaar
  • isobaarline on a map connecting places of equal pressure
Esperanto izobaro
  • izobaroline on a map connecting places of equal pressure
Finnish isobaari
  • isobaariline on a map connecting places of equal pressure
French isobare, isobare
  • isobareline on a map connecting places of equal pressure
  • isobare(thermodynamics) set of points at constant pressure
  • isobareeither of two nuclides
German Isobare, Isobar
  • Isobareline on a map connecting places of equal pressure
  • Isobareither of two nuclides
Greek ισοβαρής, ισοβαρής καμπύλη
  • ισοβαρής (isovarís)line on a map connecting places of equal pressure
  • ισοβαρής καμπύλη (isovarís kampýli)line on a map connecting places of equal pressure
Hebrew איזובר, איזובר
  • איזובר (izobár)line on a map connecting places of equal pressure
  • איזובר (izobár)either of two nuclides
Hindi समदाब रेखा, समभारिक
  • समदाब रेखा (samdāb rekhā)line on a map connecting places of equal pressure
  • समभारिक (sambhārik)either of two nuclides
Icelandic þrýstilína
  • þrýstilínaline on a map connecting places of equal pressure
Indonesian isobar
  • isobarline on a map connecting places of equal pressure
Irish iseabar, iseabar
  • iseabarline on a map connecting places of equal pressure
  • iseabareither of two nuclides
Italian isobara, isobara
  • isobaraline on a map connecting places of equal pressure
  • isobara(thermodynamics) set of points at constant pressure
  • nuclide isobaroeither of two nuclides
  • isobaroeither of two nuclides
Latvian izobāra
  • izobāraline on a map connecting places of equal pressure
Māori pae pēhanga, hua pēhanga
  • pae pēhangaline on a map connecting places of equal pressure
  • hua pēhangaline on a map connecting places of equal pressure
Polish izobara, izobara
  • izobaraline on a map connecting places of equal pressure
  • izobara(thermodynamics) set of points at constant pressure
  • izobaraeither of two nuclides
Russian изоба́ра, изоба́р
  • изоба́ра (izobára)line on a map connecting places of equal pressure
  • изоба́р (izobár)either of two nuclides
Tagalog guhit ng kadiin, kadiin
  • guhit ng kadiinline on a map connecting places of equal pressure
  • kadiin(thermodynamics) set of points at constant pressure
  • kadiineither of two nuclides

Rhymes & wordplay

Anagrams

Sorbia
Cite this entry
APA

isobar. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/isobar

MLA

“isobar.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/isobar. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “isobar,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/isobar.

Source: isobar on Wiktionary, CC BY-SA 4.0.