Standard Lemma guide

circumradius

noun · 1 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

For a given geometric shape, the radius of the smallest circle or sphere into which it will fit.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

Examples

  • The circumradius of the unit square is one-half the square root of two.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Ancient Greek κίρκος (kírkos)bor. Latin circus Latin circum Latin circum-bor. English circum- English radius English circumradius From circum- + radius.

Real reading context

circumradius in complete knowledge articles