meteor
/ˈmiːtɪə(r)/noun
- a small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light（进入大气层的）流星; 陨星。
词源
mid 16th cent. (denoting any atmospheric phenomenon)： from modern Latin meteorum, from Greek meteōron, neuter (used as a noun) of meteōros 'lofty'.