Phrase guide

statistical mechanics

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

The branch of physics that uses statistical laws to make theoretical predictions about macroscopic systems of particles.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

the branch of physics that makes theoretical predictions about the behavior of macroscopic systems on the basis of statistical laws governing its component particles

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: physics, natural philosophy

History

Etymology

Coined by American scientist Josiah Willard Gibbs in 1884, with a presentation to the American Association for the Advancement of Science titled "On the Fundamental Formula of Statistical Mechanics, with Applications to Astronomy and Thermodynamics". He attributed the choice of the word "statistical" to James Clerk Maxwell.

Across languages

Translations

4 source translations are retained for this English entry.

  • Finnish: tilastollinen mekaniikka — branch of physics
  • Japanese: 統計力学 (tōkeirikigaku) — branch of physics
  • Polish: mechanika statystyczna — branch of physics
  • Romanian: mecanică statistică — branch of physics