noun, plural mag·mas, mag·ma·ta [mag-muh-tuh] /ˈmæg mə tə/.
Origin of magma
Examples from the Web for magmatic
It may be noted also that hypersthene shows a tendency to magmatic alteration, although only rarely.Mount Rainier|Various
British Dictionary definitions for magmatic
noun plural -mas or -mata (-mətə)
Word Origin for magma
Word Origin and History for magmatic
mid-15c., "dregs," from Latin magma "dregs of an ointment," from Greek magma "thick unguent, ointment," from root of massein "to knead, mold," from PIE *mag- "to knead" (see macerate). Geological meaning "molten rock" is 1859. Related: Magmalic.