- Geology. molten material beneath or within the earth's crust, from which igneous rock is formed.
- any crude mixture of finely divided mineral or organic matter.
- Chemistry, Pharmacology. a paste composed of solid and liquid matter.
Origin of magma
Examples from the Web for magmatic
Historical Examples of magmatic
It may be noted also that hypersthene shows a tendency to magmatic alteration, although only rarely.Mount Rainier
- a paste or suspension consisting of a finely divided solid dispersed in a liquid
- hot molten rock, usually formed in the earth's upper mantle, some of which finds its way into the crust and onto the earth's surface, where it solidifies to form igneous rock
Word Origin for magma
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.
- A mixture of finely divided solids with enough liquid to produce a pasty mass.
- A suspension of particles in a liquid, such as milk of magnesia.
- The molten rock material that originates under the Earth's crust and forms igneous rock when it has cooled. When magma cools and solidifies beneath the Earth's surface, it forms what are known as intrusive rocks. When it reaches the Earth's surface, it flows out as lava and forms extrusive (or volcanic) rocks.