meteor vs meteor stream

meteor and meteor stream both are nouns.

Word	Noun	Adjective	Verb	Adverb
meteor	Yes	No	No	No
meteor stream	Yes	No	No	No

meteor (noun)	meteor stream (noun)
(astronomy) any of the small solid extraterrestrial bodies that hits the earth's atmosphere	a transient shower of meteors when a meteor swarm enters the earth's atmosphere
a streak of light in the sky at night that results when a meteoroid hits the earth's atmosphere and air friction causes the meteoroid to melt or vaporize or explode