Meanings
nounatomic weight (plural atomic weights)
plural atomic weights
- natural sciencesFormer term for the more specific relative atomic mass.
The equivalent weight of an element or compound is that weight equivalent in reactive power to one atomic weight of hydrogen.
1922, Leicester F. Hamilton, Calculations of Analytical Chemistry, page 38
Synonyms & antonyms
noun(chemistry) the mass of an atom of a chemical element expressed in atomic mass units
Broader
Also see
Synonym sets from Open English WordNet, CC BY 4.0.
Translations
Catalan pes atòmic
- pes atòmicformer terms for relative atomic mass
Chinese Mandarin 原子量, 原子量
- 原子量 (yuánzǐliàng)former terms for relative atomic mass
- 原子量 (yuánzǐliàng)term used to represent the mean atomic mass of an element in nature
Czech atomová hmotnost, atomová váha
- atomová hmotnostformer terms for relative atomic mass
- atomová váhaformer terms for relative atomic mass
Danish atomvægt, atomvægt
- atomvægtformer terms for relative atomic mass
- atomvægtterm used to represent the mean atomic mass of an element in nature
Finnish atomipaino, atomipaino
- atomipainoformer terms for relative atomic mass
- atomipainoterm used to represent the mean atomic mass of an element in nature
French poids atomique, poids atomique
- poids atomiqueformer terms for relative atomic mass
- poids atomiqueterm used to represent the mean atomic mass of an element in nature
- masse atomiqueterm used to represent the mean atomic mass of an element in nature
German Atomgewicht
- Atomgewichtformer terms for relative atomic mass
Irish meáchan adamhach
- meáchan adamhachformer terms for relative atomic mass
Italian peso atomico
- peso atomicoformer terms for relative atomic mass
Norwegian Bokmål atomvekt, atomvekt
- atomvektformer terms for relative atomic mass
- atomvektterm used to represent the mean atomic mass of an element in nature
Polish masa atomowa, masa atomowa
- masa atomowaformer terms for relative atomic mass
- masa atomowaterm used to represent the mean atomic mass of an element in nature
Portuguese peso atómico, peso atômico
- peso atómicoformer terms for relative atomic mass
- peso atômicoformer terms for relative atomic mass
Romanian masă atomică, greutate atomică
- masă atomicăformer terms for relative atomic mass
- greutate atomicăformer terms for relative atomic mass
Russian атомный вес, атомная масса
- атомный вес (atomnyj ves)former terms for relative atomic mass
- атомная масса (atomnaja massa)term used to represent the mean atomic mass of an element in nature
Slovak atómová hmotnosť, atómová váha
- atómová hmotnosťformer terms for relative atomic mass
- atómová váhaformer terms for relative atomic mass
Spanish peso atómico, peso atómico
- peso atómicoformer terms for relative atomic mass
- peso atómicoterm used to represent the mean atomic mass of an element in nature
Swedish atomvikt, atomvikt
- atomviktformer terms for relative atomic mass
- atomviktterm used to represent the mean atomic mass of an element in nature
Tagalog mulpikning bigat
- mulpikning bigatterm used to represent the mean atomic mass of an element in nature
Cite this entry
APA
atomic weight. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/atomic%20weight
MLA
“atomic weight.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/atomic%20weight. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “atomic weight,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/atomic%20weight.
Source: atomic weight on Wiktionary, CC BY-SA 4.0.