Word.ws English Dictionary

ultra-hot jupiter

ultra-hot jupiter noun: a giant planet, of similar mass to that of Jupiter, which orbits close enough to its sun to become tidally locked, and whose day-side atmosphere has therefore heated up so much, as to break apart most molecules, leaving atomic gas. The day-side atmosphere has the temperature and spectral characteristics of a star's surface.

Noun

ultra-hot jupiter (plural ultra-hot jupiters)

  1. A giant planet, of similar mass to that of Jupiter, which orbits close enough to its sun to become tidally locked, and whose day-side atmosphere has therefore heated up so much, as to break apart most molecules, leaving atomic gas. The day-side atmosphere has the temperature and spectral characteristics of a star's surface.

Forms of ultra-hot jupiter

pluralultra-hot jupiters
alternative formultra hot jupiter
alternative formultrahot jupiter
alternative formultra-hot Jupiter
alternative formultra hot Jupiter
alternative formultrahot Jupiter

Origin of ultra-hot jupiter

Blend of ultrahot + hot jupiter. From being a type of gas giant planet much hotter than most jupiter-class planets.

Questions about ultra-hot jupiter

What does ultra-hot jupiter mean?
Ultra-hot jupiter means a giant planet, of similar mass to that of Jupiter, which orbits close enough to its sun to become tidally locked, and whose day-side atmosphere has therefore heated up so much, as to break apart most molecules, leaving atomic gas. The day-side atmosphere has the temperature and spectral characteristics of a star's surface.
What part of speech is ultra-hot jupiter?
Ultra-hot jupiter is a noun.
What is the plural of ultra-hot jupiter?
The plural of ultra-hot jupiter is ultra-hot jupiters.

Words near ultra-hot jupiter in the dictionary

  1. ultra-excessive
  2. ultra-fast
  3. ultra-fast fashion
  4. ultra-high
  5. ultra-horny
  6. ultra-hot jupiter
  7. ultra-hot jupiters
  8. ultra-large-scale
  9. ultra-light rail
  10. ultra-light-rail
  11. ultra-lounge

Source and license

Adapted from Wiktionary: ultra-hot jupiter (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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