n.
Pronunciation: ˌ m ī -kr ō - ' m ē -t ē - ə - ˌ r ī t
Function: noun
Date: 1949
1 : a meteorite so small that it can pass through the earth's atmosphere without becoming intensely heated
2 : a very small particle in interplanetary space
– mi · cro · me · te · or · it · ic \ - ˌ m ē -t ē - ə - ' ri-tik \ adjective