地ち球きゅう外がい生せい命めいちきゅうがいせいめいMeanings1nounextraterrestrial life; ETScientific and general term for life originating outside Earth.科か学がく者しゃたちは地ち球きゅう外がい生せい命めいの存そん在ざいを探さがし続つづけている。Scientists continue to search for the existence of extraterrestrial life.
