noun
- plural of planetoid; small celestial bodies that orbit the sun, especially asteroids
Usage: astronomy
Examples
- Scientists discovered several new planetoids in the asteroid belt.
- The spacecraft collected samples from multiple planetoids during its mission.
- Most planetoids are found between Mars and Jupiter.
- These planetoids are too small to be classified as planets.
- The telescope detected dozens of planetoids in the outer solar system.
- Planetoids vary greatly in size and composition.