- Marchi reaction
- failure of the degenerated myelin sheath of a nerve to become discolored when treated with osmic acid.
Medical dictionary. 2011.
Medical dictionary. 2011.
Marchi balls etc. — Mar·chi balls, etc. (mahrґke) [Vittorio Marchi, Italian physician, 1851–1908] see under ball, globule, and reaction, see tractus tectospinalis, and see Stains and Staining Methods, under stain … Medical dictionary
reaction — 1. The response of a muscle or other living tissue or organism to a stimulus. 2. The color change effected in litmus and certain other organic pigments by contact with substances such as acids or alkalies; also the property that such substances… … Medical dictionary
Marchi — Vittorio, Italian physician, 1851–1908. See M. fixative, M. reaction, M. stain, M. tract … Medical dictionary
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stain — 1. To discolor. 2. To color; to dye. 3. A discoloration. 4. A dye used in histologic and bacteriologic technique. 5. A procedure in which a dye or combination of dyes and reagents is used to color the constituents of cells and tissues. For… … Medical dictionary