Definitions for maficˈmæf ɪk
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Random House Webster's College Dictionary
maf•icˈmæf ɪk(adj.)
of or pertaining to rocks rich in dark, ferromagnesian minerals.
Category: Petrology, Geology
Origin of mafic:
1910–15; ma(gnesium)+ L f(errum) iron + -ic
Wiktionary
mafic(Adjective)
Describing rocks, such as silicate minerals, magmas, and volcanic and intrusive igneous rocks, which contain relatively high concentrations of magnesium and iron.
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