| march | A territorial border or frontier; a region adjacent to a boundary line; a confine; used chiefly in the plural, and in English history applied especially to the border land on the frontiers between England and Scotland, and England and Wales. "Geneva is situated in the marches of several dominions France, Savoy, and Switzerland." (Fuller) "Lords of waste marches, kings of desolate isles." (Tennyson) Origin: OE. Marche, F. Marche; of German origin; cf. OHG. Marcha, G. Mark, akin to OS. Marka, AS. Mearc, Goth. Marka, L. Margo edge, border, margin, and possibly to E. Mark a sign. 106. Cf. Margin, Margrave, Marque, Marquis. Source: Websters Dictionary (01 Mar 1998) |
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| march fracture | <radiology> Stress or fatigue fracture of the metatarsals, seen in military recruits (associated with marching) (12 Dec 1998) |
| march haemoglobinuria | A form occurring after marathon races, protracted marching, or heavy physical exercise. (05 Mar 2000) |
| Marchand's adrenals | Small collections of accessory adrenal tissue in the broad ligament of the uterus or in the testes. Synonym: Marchand's rest. (05 Mar 2000) |
| Marchand's rest | Small collections of accessory adrenal tissue in the broad ligament of the uterus or in the testes. Synonym: Marchand's rest. (05 Mar 2000) |
| Marchand's wandering cell | A cell of the mononuclear phagocyte system. (05 Mar 2000) |
| Marchand, Felix | <person> German pathologist, 1846-1928. See: Marchand's adrenals, Marchand's rest, Marchand's wandering cell. (05 Mar 2000) |
| Marchant's zone | The area on the sphenoid and occipital bones at the base of the skull from which the dura mater is readily detached. (05 Mar 2000) |
| Marchant, Gerard | <person> French surgeon, 1850-1903. See: Marchant's zone. (05 Mar 2000) |
| Marchesani, Oswald | <person> 1900-1952. See: Weill-Marchesani syndrome. (05 Mar 2000) |
| Marchetti, Andrew | <person> U.S. Obstetrician and gynecologist, 1901-1970. See: Marshall-Marchetti-Krantz operation. (05 Mar 2000) |
| Marchi's fixative | A mixture of Muller's fixative with osmium tetroxide, with potassium chlorate substituted for the potassium dichromate of Muller's fixative for better results; used to demonstrate degenerating myelin. See: Marchi's stain. (05 Mar 2000) |
| Marchi's reaction | Failure of the myelin sheath of a nerve to blacken when submitted to the action of osmic acid. (05 Mar 2000) |
| Marchi's stain | <technique> A staining method in which the specimen is hardened for 8 to 10 days in a modified Muller's fixative, followed by immersion for 1 to 3 weeks in the same with the addition of osmic acid; fat and degenerating nerve fibres stain black. (05 Mar 2000) |
| Marchi's tract | A bundle of thick, heavily myelinated fibres originating in the deep layers of the superior colliculus, crossing to the opposite side in the dorsal tegmental decussation, descending along the median plane, between the medial longitudinal fasciculus dorsally, the medial lemniscus ventrally, into the anterior funiculus of the spinal cord. The tract ends in the medial region of the anterior horn of the cervical spinal cord, and appears to be involved in head movements during visual and auditory tracking. Throughout its course in the brainstem it is accompanied by fibres of the tectobulbar tract. Synonym: tractus tectospinalis, Held's bundle, Loewenthal's bundle, Loewenthal's tract, Marchi's tract, predorsal bundle. (05 Mar 2000) |