planetoid
US /ˈplæn.ɪ.tɔɪd/
UK /ˈplæn.ɪ.tɔɪd/
名词
小行星, 类行星
a celestial body that is too small to be considered a planet but too large to be classified as a meteoroid; an asteroid
示例:
•
The asteroid belt contains numerous planetoids.
小行星带包含许多小行星。
•
Scientists are studying a newly discovered planetoid.
科学家正在研究一颗新发现的小行星。