Definition of relative atomic mass noun from the Oxford Advanced Learner's Dictionary

relative atomic mass

noun

/ˌrelətɪv əˌtɒmɪk ˈmæs/

/ˌrelətɪv əˌtɑːmɪk ˈmæs/

(also atomic mass, atomic weight)

(chemistry)

the average mass of all the naturally occurring atoms of a chemical element

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See relative atomic mass in the Oxford Advanced American DictionarySee relative atomic mass in the Oxford Learner's Dictionary of Academic English

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