‖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. [ 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 ]
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