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magma    音標拼音: [m'ægmə]
n. 巖漿,糊劑,糊

岩漿,糊劑,糊

magma
n 1: molten rock in the earth's crust

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.
[1913 Webster]

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.
[1913 Webster]

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.
[1913 Webster]

4. (Chem.) The amorphous or homogenous matrix or ground mass,
as distinguished from well-defined crystals; as, the magma
of porphyry.
[1913 Webster] Magna Carta

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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