atomic mass unit

noun
|Updated on: 30 Jun 2018

Definition of atomic mass unit

: a unit of mass for expressing masses of atoms, molecules, or nuclear particles equal to ¹/₁₂ the mass of a single atom of the most abundant carbon isotope 12C called also dalton

Recent Examples of atomic mass unit from the Web

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First Known Use of atomic mass unit

circa 1942

in the meaning defined above

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Medical Dictionary

atomic mass unit

noun

medical Definition of atomic mass unit

: a unit of mass for expressing masses of atoms, molecules, or nuclear particles equal to ¹/₁₂ the mass of a single atom of the most abundant carbon isotope 12C called also dalton


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