Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “atomic mass unit”

atomic mass unit

noun [C]     (abbreviation u) specialized
a unit used for measuring atomic mass , equal to one twelfth of the mass of an atom of carbon in its commonest form , carbon-12Measurements of weight and mass
(Definition of atomic mass unit noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of atomic mass unit

Definitions of “atomic mass unit” in other dictionaries

Translations of “atomic mass unit”

Word of the Day

friendship

a situation in which two people are friends

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More