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empirical formula

noun, Chemistry
1.
a chemical formula indicating the elements of a compound and their relative proportions, as (CH 2 O) n .
Origin
1820-1830
1820-30
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for empirical formula

empirical formula

noun
1.
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.
a formula or expression obtained from experimental data rather than theory
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
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empirical formula in Medicine

empirical formula n.
A chemical formula that indicates the relative proportions of the elements in a molecule rather than the actual number of atoms of the elements.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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empirical formula in Science
empirical formula  
A chemical formula that indicates the relative proportions of the elements in a molecule rather than the actual number of atoms of the elements. The empirical formula of a compound may be simpler than its molecular formula, which is a multiple of the empirical formula. For example, glucose has the molecular formula C6H12O6 but the empirical formula CH2O. Compare molecular formula, structural formula.

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