micrometeorite


mi·cro·me·te·or·ite

noun \ˌmī-krō-ˈmē-tē-ə-ˌrīt\

Definition of MICROMETEORITE

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 \-ˌmē-tē-ə-ˈri-tik\ adjective

First Known Use of MICROMETEORITE

1949

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