Phrase guide

radius of curvature

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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No pronunciation record was provided for this word.

1

noun

Meaning 1

The radius of the osculating circle at the point on the curve

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

the radius of the circle of curvature; the absolute value of the reciprocal of the curvature of a curve at a given point

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: radius, r

History

Etymology

No etymology was provided for this word.

Across languages

Translations

8 source translations are retained for this English entry.

  • Bulgarian: ра́диус на кривина́та (rádius na krivináta) — radius of the osculating circle
  • Finnish: kaarevuussäde — radius of the osculating circle
  • French: rayon de courbure — radius of the osculating circle
  • German: Krümmungsradius — radius of the osculating circle
  • Hungarian: görbületi sugár — radius of the osculating circle
  • Polish: promień krzywizny — radius of the osculating circle
  • Russian: ра́диус кривизны́ (rádius krivizný) — radius of the osculating circle
  • Swedish: kurvradie — radius of the osculating circle