empirical formula(redirected from empirical formulae)
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A chemical formula that indicates the relative proportions of the elements in a molecule rather than the actual number of atoms of the elements.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Chemistry) a chemical formula indicating the proportion of each element present in a molecule: C6H12O6 is the molecular formula of sucrose whereas CH2O is its empirical formula. Compare molecular formula, structural formula
2. (General Physics) a formula or expression obtained from experimental data rather than theory
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a chemical formula showing the elements of a compound and their relative proportions, as (CH2O)n or H2O.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||empirical formula - a chemical formula showing the ratio of elements in a compound rather than the total number of atoms|
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