antihorizon
antihorizon noun: the opposite of an event horizon, allowing escape but not entry.
Noun
antihorizon (plural antihorizons)
- The opposite of an event horizon, allowing escape but not entry.
- White holes must therefore be surrounded by the opposite of an event horizon, something known as an antihorizon, which would allow one-way traffic out and never in. Unfortunately, antihorizons are very unstable and get converted to normal horizons in a matter of seconds after forming.2002, Jim Al-Khalili, Black Holes, Wormholes and Time Machines, page 199
- The Kruskal diagram of the Schwarzschild geometry showed it to possess not only a normal horizon but also an antihorizon, beyond which there was, supposedly, another Universe.2009, Jon Schiller, 21st Century Cosmology, page 54
Forms of antihorizon
| plural | antihorizons |
|---|
Origin of antihorizon
From anti- + horizon.
Questions about antihorizon
- What does antihorizon mean?
- Antihorizon means the opposite of an event horizon, allowing escape but not entry.
- What part of speech is antihorizon?
- Antihorizon is a noun.
- What is the plural of antihorizon?
- The plural of antihorizon is antihorizons.
Words near antihorizon in the dictionary
Source and license
Adapted from Wiktionary: antihorizon (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Cite this entry: “antihorizon.” Word.ws, https://word.ws/antihorizon. Based on Wiktionary, CC BY-SA 4.0.