Phrase guide

atomic weight

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

Former term for the more specific relative atomic mass.

Definition source: English Wiktionary via Wiktextract

Topics: natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A term used to represent the mean relative atomic mass of an element in nature, as distinct from the relative atomic mass of a single isotope.

Definition source: English Wiktionary via Wiktextract

Topics: natural-sciences, physical-sciences, physics

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 mass, 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

37 source translations are retained for this English entry.

  • Catalan: pes atòmic — former terms for relative atomic mass
  • Chinese Mandarin: 原子量 (yuánzǐliàng) — former terms for relative atomic mass
  • Czech: atomová hmotnost — former terms for relative atomic mass
  • Czech: atomová váha — former terms for relative atomic mass
  • Danish: atomvægt — former terms for relative atomic mass
  • Finnish: atomipaino — former terms for relative atomic mass
  • French: poids atomique — former terms for relative atomic mass
  • Georgian: ატომური წონა (aṭomuri c̣ona) — former terms for relative atomic mass
  • German: Atomgewicht — former terms for relative atomic mass
  • Irish: meáchan adamhach — former terms for relative atomic mass
  • Italian: peso atomico — former terms for relative atomic mass
  • Kyrgyz: атомдук салмак (atomduk salmak) — former terms for relative atomic mass
  • Norwegian Bokmål: atomvekt — former terms for relative atomic mass
  • Norwegian Nynorsk: atomvekt — former terms for relative atomic mass
  • Polish: masa atomowa — former terms for relative atomic mass
  • Portuguese: peso atómico — former terms for relative atomic mass
  • Portuguese: peso atômico — former terms for relative atomic mass
  • Romanian: masă atomică — former terms for relative atomic mass
  • Romanian: greutate atomică — former terms for relative atomic mass
  • Russian: атомный вес (atomnyj ves) — former terms for relative atomic mass
  • Slovak: atómová hmotnosť — former terms for relative atomic mass
  • Slovak: atómová váha — former terms for relative atomic mass
  • Spanish: peso atómico — former terms for relative atomic mass
  • Swedish: atomvikt — former terms for relative atomic mass
  • Chinese Mandarin: 原子量 (yuánzǐliàng) — term used to represent the mean atomic mass of an element in nature
  • Danish: atomvægt — term used to represent the mean atomic mass of an element in nature
  • Finnish: atomipaino — term used to represent the mean atomic mass of an element in nature
  • French: poids atomique — term used to represent the mean atomic mass of an element in nature
  • French: masse atomique — term used to represent the mean atomic mass of an element in nature
  • Kyrgyz: атомдук салмак (atomduk salmak) — term used to represent the mean atomic mass of an element in nature
  • Norwegian Bokmål: atomvekt — term used to represent the mean atomic mass of an element in nature
  • Norwegian Nynorsk: atomvekt — term used to represent the mean atomic mass of an element in nature
  • Polish: masa atomowa — term used to represent the mean atomic mass of an element in nature
  • Russian: атомная масса (atomnaja massa) — term used to represent the mean atomic mass of an element in nature
  • Spanish: peso atómico — term used to represent the mean atomic mass of an element in nature
  • Swedish: atomvikt — term used to represent the mean atomic mass of an element in nature
  • Tagalog: mulpikning bigat — term used to represent the mean atomic mass of an element in nature