molecular formulae

molecular formula

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


Origin:
1900–05

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Collins
World English Dictionary
molecular formula
 
n
empirical formula Compare structural formula a chemical formula indicating the numbers and types of atoms in a molecule: H2SO4 is the molecular formula of sulphuric acid

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

molecular formula n.
A chemical formula that shows the number and kinds of atoms in a molecule.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
molecular formula  
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 C9H8O4. Compare empirical formula, structural formula.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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