noun
planetoid
Planetoid (noun) means an asteroid, whatever its size.
noun
1
An asteroid, whatever its size.
"if one can argue for the early existence of a few largely molten planetoids with dimension of kilometers or tens of kilometers, one can quite as easily argue for very large numbers of such planetoids."
— H.A. Zook, On a New Model for the Generation of Chondrites (1979)
2
An asteroid-like body in an orbit beyond the asteroid belt, such as a centaur or Kuiper belt object
3
A bigger body that orbits the Sun like a planet, such as Vesta or a possible dwarf planet like Eris or Sedna.
4
Any object with the mass of a planet, including ordinary planets and moons.
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Rhymes for planetoid
See all rhymes for planetoid →Frequently asked questions
What is the meaning of planetoid?
"planetoid" (noun) means an asteroid, whatever its size.
What are the different meanings of planetoid?
"planetoid" has 3 main meanings: 1. An asteroid, whatever its size; 2. An asteroid-like body in an orbit beyond the asteroid belt, such as a centaur or Kuiper belt object; 3. A bigger body that orbits the Sun like a planet, such as Vesta or a possible dwarf planet like Eris or Sedna.
