micrometeorite vs meteorite

micrometeorite and meteorite both are nouns.

Word	Noun	Adjective	Verb	Adverb
micrometeorite	Yes	No	No	No
meteorite	Yes	No	No	No

As nouns, meteorite is a hypernym of micrometeorite; that is, meteorite is a word with a broader meaning than micrometeorite:

micrometeorite: a meteorite or meteoroid so small that it drifts down to earth without becoming intensely heated in the atmosphere
meteorite: stony or metallic object that is the remains of a meteoroid that has reached the earth's surface

micrometeorite (noun)	meteorite (noun)
a meteorite or meteoroid so small that it drifts down to earth without becoming intensely heated in the atmosphere	stony or metallic object that is the remains of a meteoroid that has reached the earth's surface