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magma

- 9 dictionary results

mag⋅ma

[mag-muh]
–noun, plural -mas, -ma⋅ta [-muh-tuh] .
1. Geology. molten material beneath or within the earth's crust, from which igneous rock is formed.
2. any crude mixture of finely divided mineral or organic matter.
3. Chemistry, Pharmacology. a paste composed of solid and liquid matter.

Origin:
1400–50; late ME < L: dregs, leavings < Gk mágma kneaded mass, salve, equiv. to mag- (base of mássein to knead, press; see mass ) + -ma n. suffix of result


mag⋅mat⋅ic [mag-mat-ik] , adjective
mag⋅ma⋅tism, noun
mag·ma   (māg'mə)   
n.   pl. mag·ma·ta (-mä'tə) or mag·mas
  1. A mixture of finely divided solids with enough liquid to produce a pasty mass.
  2. Geology The molten rock material under the earth's crust, from which igneous rock is formed by cooling.
  3. Pharmacology A suspension of particles in a liquid, such as milk of magnesia.
  4. The residue of fruits after the juice has been expressed; pomace.

[Middle English, sediment, dregs, from Latin, from Greek, unguent, from massein, mag-, to knead; see mag- in Indo-European roots.]
mag·mat'ic (-māt'ĭk) adj.

Magma

Mag"ma\, n. [L., fr. Gr. ?, fr. ? to squeeze, knead.]

1. Any crude mixture of mineral or organic matters in the state of a thin paste. --Ure.

2. (Med.) (a) A thick residuum obtained from certain substances after the fluid parts are expressed from them; the grounds which remain after treating a substance with any menstruum, as water or alcohol. (b) A salve or confection of thick consistency. --Dunglison.

3. (Geol.) (a) The molten matter within the earth, the source of the material of lava flows, dikes of eruptive rocks, etc. (b) The glassy base of an eruptive rock.

4. (Chem.) The amorphous or homogenous matrix or ground mass, as distinguished from well-defined crystals; as, the magma of porphyry.

magma

Molten rock usually located deep within the mantle of the Earth that occasionally comes to the surface through cracks in the mantle or through the eruption of volcanoes.

Note: When magma cools and solidifies, it forms igneous rock, of which lava is one type.

magma 
c.1420, "dregs," from L. magma "dregs of an ointment," from Gk. magma "an ointment," from root of massein "to knead, mold," from PIE *mag- "kneading" (see macerate). Geological meaning "molten rock" is 1865.

Main Entry: mag·ma
Pronunciation: 'mag-m&
Function: noun
1 : a crude mixture of mineral or organic matter in the state of a thin paste
2 : a suspension of a large amount of precipitated material (as in milk of magnesia or milk of bismuth) in a small volume of a watery vehicle

magma mag·ma (māg'mə)
n.

  1. A mixture of finely divided solids with enough liquid to produce a pasty mass.
  2. A suspension of particles in a liquid, such as milk of magnesia.

magma   (māg'mə)  Pronunciation Key 
Plural magmata (māg-mä'tə) or magmas
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.

Magma symbolic mathematics, tool
A program used for heavy duty algebraic computation in many branches of mathematics. Magma, developed by John Cannon and associates at the University of Sydney, succeeded Cayley. It runs at several hundred sites.
E-mail: .
(http://maths.usyd.edu.au:8000/u/magma/).
[W. Bosma, J. Cannon and C. Playoust, The Magma algebra system I: The user language, J. Symb. Comp., 24, 3/4, 1997, 235-265].
(2000-12-21)

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