单词	empirical formula
释义	empirical formula noun : a chemical formula showing the simplest ratio of elements in a compound rather than the total number of atoms in the molecule CH2O is the empirical formula for glucose Example Sentences Recent Examples on the Web In 1973 Carl Sagan devised a more empirical formula for Kardashev’s scale that allowed for finer gradations. Lee Billings, Scientific American, 17 Apr. 2015 Word History First Known Use 1837, in the meaning defined above Medical Definition empirical formula noun : a chemical formula showing the simplest ratio of elements in a compound rather than the total number of atoms in the molecule CH2O is the empirical formula for glucose compare molecular formula
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