Definition of Moscovian in US English:

Moscovian

adjective

Geology
  • Designating a division of the Upper Carboniferous in eastern Europe and Asia; of or relating to this division.

noun

Geology
  • The Moscovian division of the Upper Carboniferous; the rocks deposited during this time. Compare "Westphalian" and the note there.

Origin

Late 19th century; earliest use found in Journal of the Iron and Steel Institute. From Moscovian, variant of Muscovian [adjective], after French moscovien or Russian moskovskij.

Pronunciation

Moscovian

/mɒsˈkəʊvɪən/