mixture

1. A mutual incorporation of two or more substances, without chemical union, the physical characteristics of each of the components being retained. A mechanical m. is a m. of particles or masses distinguishable as such under the microscope or in other ways; a physical m. is a more intimate m. of molecules, as in the case of gases and many solutions. 2. In chemistry, a mingling together of two or more substances without the occurrence of a reaction by which they would lose their individual properties, i.e., without permanent gain or loss of electrons. 3. In pharmacy, a preparation, consisting of a liquid holding an insoluble medicinal substance in suspension by means of acacia, sugar, or some other viscid material. [L. mixtura or mistura]

- Bordeaux m. a plant fungicidal m., comprising copper sulfate (5 parts) and calcium oxide (5 parts) in water (400 parts) freshly mixed; the CaO is added to the CuSO₄ solution.

- extemporaneous m. a m. prepared at the time ordered, according to the directions of a prescription, as distinguished from a stock preparation.

- Seidlitz m. a m. of 3 parts Rochelle salt and 1 part sodium bicarbonate. Ten grams of the m. are employed with 2.17 g tartaric acid for one Seidlitz powder. The powder, which effervesces when placed in water, was widely used as a cathartic.

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mix·ture 'miks-chər n a product of mixing: as

a) a portion of matter consisting of two or more components in varying proportions that retain their own properties

b) an aqueous liquid medicine: POTION specif a preparation in which insoluble substances are suspended in watery fluids by the addition of a viscid material (as gum, sugar, or glycerol)

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mix·ture (miksґchər) [L. mixtura, mistura] a combination of different drugs or ingredients, as a fluid resulting from mixing a fluid with other fluids, or with solids, or a suspension of a solid in a liquid.