What context can I use each word in?
Learn when and how to use these words with these examples!
asteroid
Example
Scientists are studying the composition of asteroids to learn more about the early solar system. [asteroid: noun]
Example
The spacecraft will be sent to explore an asteroid that is passing close to Earth. [asteroid: adjective]
planetoid
Example
Pluto used to be considered a planet but is now classified as a planetoid. [planetoid: noun]
Example
The spacecraft will study the surface of the planetoid to gather data about its composition. [planetoid: adjective]
Good things to know
Which word is more common?
Asteroid is a more commonly used term compared to planetoid. Asteroids are well-known and have been studied extensively, while planetoids are less common and often associated with specific celestial objects like Pluto.
Whatโs the difference in the tone of formality between asteroid and planetoid?
Both asteroid and planetoid can be used in both formal and informal contexts. However, asteroid is more widely recognized and used in everyday language, making it slightly more informal compared to planetoid.