extraterrestrial

柯林斯词典

1. ADJ Extraterrestrial means happening, existing, or coming from somewhere beyond the planet Earth. 地球外的[正式] [usu ADJ n]
NASA has started a 10-year search for extraterrestrial intelligence. 美国航空航天局已经启动了一个为期10年的寻找外星生物的项目。
...extraterrestrial rocks. ...外星岩石。
2. N-COUNT Extraterrestrials are living creatures that some people think exist or may exist in another part of the universe. 外星人