molecular mass

noun

: the mass of a molecule that is equal to the sum of the masses of all the atoms contained in the molecule

Example Sentences

Recent Examples on the Web While Delta 8 and Delta 9 THC share a very similar chemical structure, there is one major difference: The molecular mass. Amber Smith, Discover Magazine, 19 Oct. 2022

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'molecular mass.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1873, in the meaning defined above

Time Traveler
The first known use of molecular mass was in 1873

Dictionary Entries Near molecular mass

Cite this Entry

“Molecular mass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/molecular%20mass. Accessed 27 Jan. 2023.

Kids Definition

molecular mass

noun
: the mass of a molecule that is equal to the sum of the masses of all the atoms contained in the molecule's formula
Last Updated: - Updated example sentences
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