Standard Lemma guide

millibar

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • CMU ARPABET: M IH1 L AH0 B AA2 R Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A non-SI unit of pressure equal to 100 pascals, used primarily to report atmospheric pressure.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a unit of atmospheric pressure equal to one thousandth of a bar

Definition source: Princeton WordNet 3.0

Examples

  • atmospheric pressure at sea level is 1013 millibars

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: pressure unit

History

Etymology

Etymology tree Proto-Indo-European *sem- Proto-Indo-European *sm̥- Proto-Indo-European *-is Proto-Indo-European *-h2 Proto-Indo-European *-ih2 Proto-Indo-European *smih2 Proto-Indo-European *ǵhes- Proto-Indo-European *-lom Proto-Indo-European *ǵhéslom ▲ Proto-Indo-European *-ih2 Proto-Indo-European *ǵhéslih2 Proto-Indo-European *smih2ǵhéslih2 Proto-Italic *smīɣeslī Latin mīlleder. French milli- English milli- English bar English millibar From milli- + bar.

Across languages

Translations

22 source translations are retained for this English entry.

  • Arabic: ميلي بار (milli barr) — non-SI unit of pressure
  • Catalan: mil·libar — non-SI unit of pressure
  • Chinese Cantonese: 毫巴 (hou4 baa1) — non-SI unit of pressure
  • Chinese Cantonese: 毫米水銀柱 /毫米水银柱 (hou4 mai5 seoi2 ngan4 cyu5) — non-SI unit of pressure
  • Chinese Mandarin: 毫巴 (háobā) — non-SI unit of pressure
  • Finnish: millibaari — non-SI unit of pressure
  • French: millibar — non-SI unit of pressure
  • German: Millibar — non-SI unit of pressure
  • Hebrew: מיליבר (miliber) — non-SI unit of pressure
  • Icelandic: millibar — non-SI unit of pressure
  • Irish: milleabar — non-SI unit of pressure
  • Italian: millibar — non-SI unit of pressure
  • Japanese: ミリバール (miribāru) — non-SI unit of pressure
  • Korean: 밀리바 (milliba) — non-SI unit of pressure
  • Norwegian Bokmål: millibar — non-SI unit of pressure
  • Norwegian Nynorsk: millibar — non-SI unit of pressure
  • Portuguese: milibar — non-SI unit of pressure
  • Romanian: milibar — non-SI unit of pressure
  • Russian: миллиба́р (millibár) — non-SI unit of pressure
  • Spanish: milibar — non-SI unit of pressure
  • Thai: มิลลิบาร์ — non-SI unit of pressure
  • Vietnamese: milibarơ — non-SI unit of pressure