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molecular formula

noun

Chemistry.
  1. a chemical formula that indicates the kinds of atoms and the number of each kind in a molecule of a compound.

molecular formula

noun

  1. a chemical formula indicating the numbers and types of atoms in a molecule Compare empirical formula structural formula

    H2SO4 is the molecular formula of sulphuric acid

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

molecular formula

  1. A chemical formula that shows the total number and kinds of atoms in a molecule, but not their structural arrangement. For example, the molecular formula of aspirin is C 9 H 8 O 4 .
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Word History and Origins

Origin of molecular formula1

First recorded in 1900–05
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