Phrase guide

Planck relic

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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noun

Meaning 1

A black hole with an event horizon on the order of a Planck length (~ 10−35 metres), and a mass on the order of a Planck mass (~ 20 micrograms).

Definition source: English Wiktionary via Wiktextract

Qualifier: quantum mechanics; relativity theory; quantum mechanics; relativity theory

Topics: astronomy, astrophysics, cosmology, natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Word forms

Inflections and variants

Planck relics — plural

Word family

Derived and related words

Derived: none provided

Related: Planck, Planck energy, Planckian, Planck length, Planck mass, Planck scale, Planck star, Planck time, Planck unit, Planck volume

Semantic map

Other relationships

Coordinate Terms: black hole, fuzzball, Planck star, quantum singularity, singularity, spacetime singularity

Sources

Where this information comes from

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