What does "lrn" mean?

Initialism of luminous red nova: an astronomical event, believed to be a type of stellar explosion, intermediate in power between a nova and a supernova, and such that as the explosive debris expands it reddens and cools, unlike a nova or supernova, in which thinning explosive debris exposes hotter interior layers.

Lrn

noun

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Noun

1
Initialism of luminous red nova: an astronomical event, believed to be a type of stellar explosion, intermediate in power between a nova and a supernova, and such that as the explosive debris expands it reddens and cools, unlike a nova or supernova, in which thinning explosive debris exposes hotter interior layers. abbreviation, alt-of, initialism

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astronomical event luminous red nova

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.