Phrase guide

Schwarzschild radius

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.

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Pronunciation

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1

noun

Meaning 1

The radius of an object such that, if all its mass were compressed within that radius, the escape velocity would equal the speed of light.

Definition source: English Wiktionary via Wiktextract

Topics: astronomy, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Named after German physicist and astronomer Karl Schwarzschild (1873–1916).

Across languages

Translations

2 source translations are retained for this English entry.

  • Polish: promień Schwarzschilda — radius of an object such that, if all its mass were compressed within that radius, the escape velocity would equal the speed of light
  • Vietnamese: bán kính Schwarzschild — radius of an object such that, if all its mass were compressed within that radius, the escape velocity would equal the speed of light