Phrase guide

atomic mass

noun · 3 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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1

noun

Meaning 1

The mass of an atom.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

atomic weight; the average mass of atoms of an element.

Definition source: English Wiktionary via Wiktextract

Usage: countable, proscribed, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

(chemistry) the mass of an atom of a chemical element expressed in atomic mass units

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: atomic weight, relative atomic mass

Antonyms: none provided

Broader terms: mass

Narrower terms: equivalent, equivalent weight, combining weight, eq, milliequivalent, meq

History

Etymology

No etymology was provided for this word.

Across languages

Translations

35 source translations are retained for this English entry.

  • Armenian: ատոմային զանգված (atomayin zangvac) — mass of an atom
  • Azerbaijani: atom kütləsi — mass of an atom
  • Catalan: massa atòmica — mass of an atom
  • Chinese Mandarin: 原子質量 /原子质量 (yuánzǐ zhìliàng) — mass of an atom
  • Chinese Mandarin: 原子量 (yuánzǐliàng) — mass of an atom
  • Danish: atommasse — mass of an atom
  • Dutch: atoommassa — mass of an atom
  • Esperanto: atomomaso — mass of an atom
  • Finnish: atomimassa — mass of an atom
  • French: masse atomique — mass of an atom
  • Georgian: ატომური მასა (aṭomuri masa) — mass of an atom
  • Georgian: ატომური წონა (aṭomuri c̣ona) — mass of an atom
  • German: Atommasse — mass of an atom
  • Hungarian: atomtömeg — mass of an atom
  • Irish: mais adamhach — mass of an atom
  • Japanese: 原子量 (genshiryō) — mass of an atom
  • Kazakh: атомдық масса (atomdyq massa) — mass of an atom
  • Korean: 원자 질량 (wonja jillyang) — mass of an atom
  • Northern Kurdish: giraniya atomê — mass of an atom
  • Norwegian Bokmål: atommasse — mass of an atom
  • Norwegian Nynorsk: atommasse — mass of an atom
  • Polish: masa atomowa — mass of an atom
  • Portuguese: massa atómica — mass of an atom
  • Portuguese: massa atômica — mass of an atom
  • Romanian: masă atomică — mass of an atom
  • Russian: а́томная ма́сса (átomnaja mássa) — mass of an atom
  • Spanish: masa atómica — mass of an atom
  • Swahili: uzani atomia — mass of an atom
  • Swedish: atommassa — mass of an atom
  • Tagalog: mulpikning bugat — mass of an atom
  • Thai: มวลอะตอม — mass of an atom
  • Turkish: bağıl atom kütlesi — mass of an atom
  • Ukrainian: а́томна ма́са (átomna mása) — mass of an atom
  • Vietnamese: nguyên tử khối — mass of an atom
  • Welsh: màs atomig — mass of an atom