planetoid

planetoid

中英词典

名词：

形容词：

词语辨析

planetoid通常用来指代太阳系中行星和彗星之间的小天体。

词汇扩充

planetesimal：原始行星体

近义词

反义词

柯林斯词典

NOUN：Planetoid is an old-fashioned word for asteroid.

ADJECTIVE：If you describe something as planetoid, you mean that it is similar to a planet in some way, especially in its shape or size.

牛津词典

Planetoid is a former name for asteroid.

用法

Planetoid is not commonly used in modern scientific contexts, as the term asteroid is more widely accepted.

例句

1. The planetoid passed close to Earth on its orbit around the sun.

2. Scientists are studying the composition of the planetoid to learn more about the early solar system.

3. Many planetoids are found in the asteroid belt between Mars and Jupiter.

4. The spacecraft collected data as it flew by the planetoid.

5. Some astronomers believe that a planetoid collision caused the extinction of the dinosaurs.

6. The planetoid's surface is covered in craters from impacts over millions of years.

7. She discovered a new planetoid while observing the night sky with her telescope.

8. Scientists are planning a mission to study a distant planetoid in the Kuiper Belt.

9. Comets and planetoids are remnants of the early solar system.

10. The planetoid's irregular shape sets it apart from the spherical planets.

11. The spacecraft took detailed images of the planetoid's surface features.

12. Many planetoids are believed to be composed of rock and metal.

13. Some planetoids have moons orbiting around them.

14. Scientists are analyzing the data collected from the planetoid to determine its composition.

15. She wrote her thesis on the origins of planetoids in the solar system.

16. There are thousands of planetoids in our solar system, ranging in size from meters to hundreds of kilometers.

17. Some planetoids have highly elliptical orbits that bring them close to the sun and then far out into the solar system.

18. The planetoid's surface is covered in a layer of dust and debris from space.

19. Scientists are debating whether Pluto should be classified as a planet or a planetoid.

20. Exploration of planetoids in the outer solar system is a priority for future space missions.