relative atomic mass Definition in the Cambridge English Dictionary
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Definition of “relative atomic mass” - English Dictionary

Definition of "relative atomic mass" - British English Dictionary

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relative atomic massnoun [C or U]

uk   us   (also atomic weight) specialized
the ​mass of an ​atom of a ​particularchemicalelement, usually ​expressed in atomicmassunits
(Definition of relative atomic mass from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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