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Definition of Atomic Weight in English :

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Atomic Weight

see synonyms of atomic weight

Noun

1. atomic mass, atomic weight, relative atomic mass

(chemistry) the mass of an atom of a chemical element expressed in atomic mass units

WordNet Lexical Database for English. Princeton University. 2010.

Atomic Weight

see synonyms of atomic weight
noun
the former name for relative atomic mass. Abbreviation: at wt

Collins English Dictionary. Copyright © HarperCollins Publishers

Atomic Weight

see synonyms of atomic weight
Chemistry
the weight of one atom of an element expressed in atomic mass units: it is the average weight of all the isotopes of the element

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.

Atomic Weight

see synonyms of atomic weight
n.
The ratio of the average mass of all the isotopes of a given sample of a chemical element to the atomic mass unit. Also called relative atomic mass.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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