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kilonova.

A type of supernova that is underluminous, caused by the merger of two neutron stars

8 characters4 syllables approx.English language

Meaning & usage

noun
  1. A type of supernova that is underluminous, caused by the merger of two neutron stars

  2. A radiation pattern typical of a kilonova.

    informal
Where this word comes from

From kilo- + nova. From kilo- (“thousands”). From being much more luminous than a nova, but less so than a typical supernova.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.