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MAGMA - Definiția din dicționar

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‖Mag"ma (?), n. [L., fr. Gr. &unr_;, fr. &unr_; to squeeze, knead.] 1. Any crude mixture of mineral or organic matters in the state of a thin paste. Ure.
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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.
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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.
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4. (Chem.) The amorphous or homogenous matrix or ground mass, as distinguished from well-defined crystals; as, the magma of porphyry.
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