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What does FMR stand for?

FMR stands for Fresh Molten Rock

This definition appears very rarely and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

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We have 107 other meanings of FMR in our Acronym Attic

Samples in periodicals archive:

They also found microscopic shards of glassy rock in the fluids, suggesting that fresh molten rock had forced its way up through the crust and erupted on the seafloor within the last month.