molecular formula

noun

: a chemical formula that gives the total number of atoms of each element in each molecule of a substance compare structural formula

Examples of molecular formula in a Sentence

Recent Examples on the Web The molecular formula of this detergent is designed to penetrate synthetic materials, to help get — and keep — your activewear clean. Elizabeth Marino, Peoplemag, 14 Mar. 2023 Every finite group has a unique molecular formula of this kind — a collection of simple groups from which it is made. Quanta Magazine, 22 Sep. 2017

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'molecular formula.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1861, in the meaning defined above

Time Traveler
The first known use of molecular formula was in 1861

Dictionary Entries Near molecular formula

Cite this Entry

“Molecular formula.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/molecular%20formula. Accessed 14 Jul. 2024.

Kids Definition

molecular formula

noun
: a chemical formula that gives the total number of atoms of each element present in a molecule

Medical Definition

molecular formula

noun
: a chemical formula for a compound existing as discrete molecules that gives the total number of atoms of each element in a molecule
the molecular formula for water is H2O
see structural formula compare empirical formula

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