Phrase guide

coefficient of friction

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 ratio between (1) the magnitude of the force of friction which a surface produces on an object (moving along the surface or being pressed statically against it) and (2) the magnitude of the normal force which is produced by the surface on the object and which is perpendicular to that surface.

Definition source: English Wiktionary via Wiktextract

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 ratio of the weight of an object being moved along a surface and the force that maintains contact between the object and the surface

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: coefficient

History

Etymology

No etymology was provided for this word.

Across languages

Translations

33 source translations are retained for this English entry.

  • Arabic: معامل الاحتكاك — ratio
  • Basque: marruskadura koefiziente — ratio
  • Bulgarian: коефициент на триене (koeficient na triene) — ratio
  • Catalan: coeficient de fricció — ratio
  • Chinese Mandarin: 摩擦係數 /摩擦系数 (mócā xìshù) — ratio
  • Czech: součinitel tření — ratio
  • Czech: koeficient tření — ratio
  • Dutch: wrijvingscoëfficiënt — ratio
  • Estonian: hõõrdetegur — ratio
  • Finnish: kitkakerroin — ratio
  • French: coefficient de frottement — ratio
  • French: coefficient de friction — ratio
  • Georgian: ხახუნის კოეფიციენტი (xaxunis ḳoepicienṭi) — ratio
  • German: Reibungskoeffizient — ratio
  • Hindi: घर्षण गुणांक (gharṣaṇ guṇāṅk) — ratio
  • Hungarian: súrlódási tényező — ratio
  • Hungarian: súrlódási együttható — ratio
  • Italian: coefficiente di attrito — ratio
  • Japanese: 摩擦係数 (masatsu keisū) — ratio
  • Korean: 마찰 계수 (machal gyesu) — ratio
  • Polish: współczynnik tarcia — ratio
  • Portuguese: coeficiente de atrito — ratio
  • Romanian: coeficient de frecare — ratio
  • Russian: коэффицие́нт тре́ния (koefficijént trénija) — ratio
  • Serbo-Croatian: коефицѝјент тре́ња — ratio
  • Serbo-Croatian: koeficìjent trénja — ratio
  • Spanish: coeficiente de rozamiento — ratio
  • Spanish: coeficiente de fricción — ratio
  • Swedish: friktionskoefficient — ratio
  • Tamil: உராய்வு குணகம் (urāyvu kuṇakam) — ratio
  • Tamil: உராய்வு விசை குணகம் (urāyvu vicai kuṇakam) — ratio
  • Turkish: sürtünme katsayısı — ratio
  • Ukrainian: коефіцієнт тертя (koeficijent tertja) — ratio