Hypernova

Part of speech: noun

Definitions

1. This denotes a specifically intense form of explosion that happens when a large star undergoes rapid collapse, resulting in a substantially more energetic release than standard supernova events
2. An exceptionally powerful stellar explosion occurs when a massive star collapses under its own gravity, producing an energy output far greater than that of a typical supernova
3. A highly energetic event is characterized by the explosive death of a massive star, leading to an extraordinary release of energy beyond regular supernovae

Etymology: Astronomers needed a name for something bigger than an ordinary exploding star, and they built it by bolting a Greek prefix onto a Latin noun. "Hyper-" comes from Ancient Greek "hyper," meaning "over" or "beyond," and it reached English as a productive prefix. "Nova" is the Latin word for "new," from "novus," and it gave astronomy the older term for a star that suddenly flares up and appears new in the sky. Put together, the two parts describe an explosion that goes past the usual nova, or in the case of a supernova, past the ordinary blast. The compound is a plain technical coinage, built in the same way as many scientific terms that mix Greek and Latin pieces. Its sense rests on the prefix doing the work: a "hypernova" is understood as an extreme version of a supernova, the collapse of a very massive star releasing far more energy than usual. The word belongs to modern astrophysics and was not used by ancient Greek or Roman observers, who had no concept of such an event.

Synonyms: supernova, stellar explosion, massive star explosion, cataclysmic event, cosmic event