Usually means: Unit of mass for atoms.
Definitions Related words Mentions
We found 9 dictionaries that define the word atomic mass units:

General (6 matching dictionaries)
  1. atomic mass units: Merriam-Webster
  2. atomic mass units: Collins English Dictionary
  3. atomic mass units: Cambridge Advanced Learner's Dictionary
  4. atomic mass units: Wiktionary
  5. Atomic mass units: Wikipedia, the Free Encyclopedia
  6. Atomic mass units: TheFreeDictionary.com

Computing (1 matching dictionary)
  1. Atomic mass units: Encyclopedia

Medicine (2 matching dictionaries)
  1. atomic mass units: Merriam-Webster Medical Dictionary
  2. Atomic mass units: Medical dictionary

(Note: See atomic_mass_unit as well.)

Definitions from Wiktionary (atomic mass unit)

noun:  (physical chemistry) A unit of mass equal to 1/12 the mass of an atom of ¹²C (carbon-12, an isotope of carbon).
▸ Also see atomic_mass_unit


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