atomic mass number

noun

Pedantic form of mass number. Symbol: A.

Similar
Amass numbernucleon number
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Meanings

nounatomic mass number (plural atomic mass numbers)

plural atomic mass numbers

  1. datedphysicalchemistryPedantic form of mass number. Symbol: A.

    Synonyms: A, mass number, nucleon number

Synonyms & antonyms

nounPedantic form of mass number. Symbol: A.

Similar
Amass numbernucleon number
Also see
mass number

Origin

From atomic mass + number.

Full word history & related roots →
Cite this entry
APA

atomic mass number. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/atomic%20mass%20number

MLA

“atomic mass number.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/atomic%20mass%20number. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “atomic mass number,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/atomic%20mass%20number.

Source: atomic mass number on Wiktionary, CC BY-SA 4.0.