Word.ws English Dictionary

Planet X nghĩa là gì?

hành tinh X

/ˈplænɪt ɛks/

Planet X in Vietnamese: hành tinh X. In English, Planet X means a hypothetical planet in the Solar system, beyond the currently known outermost planet. (The term was applied to Eris for a short while, when Pluto was still considered the ninth planet.).

Vietnamese words for Planet X

hypothetical planet
hành tinh X

English meaning of Planet X

  1. proper noun A hypothetical planet in the Solar system, beyond the currently known outermost planet. (The term was applied to Eris for a short while, when Pluto was still considered the ninth planet.).
  2. proper noun A theoretical planet responsible for reported gravitational perturbations of Neptune's orbit. (This was initially believed to be Pluto. The reported perturbations were an error.).
  3. proper noun A theoretical planet responsible for observed gravitational perturbations of Uranus' orbit. (This planet was discovered and is now known as Neptune.).

Full definition of Planet X

Questions about Planet X in Vietnamese

What is the meaning of Planet X in Vietnamese?
Planet X in Vietnamese is hành tinh X.
Planet X nghĩa là gì?
Planet X: hành tinh X.
What does Planet X mean in English?
Planet X means a hypothetical planet in the Solar system, beyond the currently known outermost planet. (The term was applied to Eris for a short while, when Pluto was still considered the ninth planet.).

Source and license

Adapted from Wiktionary: Planet X (page history and authors), its translation table and English meanings. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the Vietnamese words and English meanings and added links. Wiktionary data of 2026-09-02.

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Cite this page: “Planet X meaning in Vietnamese.” Word.ws, https://word.ws/vietnamese/planet_x. Based on Wiktionary, CC BY-SA 4.0.