🇯🇵Japanese Source WordCode: JA

実験式

Pronunciation / Transliteration: jikken-shiki

🇬🇧 Direct English Meaning:
Empirical formula/ɪmˈpɪr.ɪ.kəl ˈfɔːr.mjə.lə/
nounCEFR C1 (Advanced)Top #14500 frequency
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🇯🇵 Example Sentence in Japanese:

"実験式は化合物に含まれる原子の最も簡単な整数比を示します。"

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A chemical formula showing the simplest whole-number ratio of atoms present in a compound.

    "The empirical formula of hydrogen peroxide is HO, representing the simplest 1:1 ratio of hydrogen to oxygen atoms."
  2. 2

    Any mathematical or scientific expression derived strictly from experimental data rather than first principles.

    "Engineers used an empirical formula to estimate the wind resistance under turbulent flow conditions."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the combination of 'empirical'—coming from the Greek empeiria meaning 'experience'—and 'formula', from the Latin diminutive of forma meaning 'shape, model'. The term emerged in modern chemistry during the 19th century to denote chemical compositions derived purely from observation and analysis rather than theoretical structure.

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