| landmark | 1. A mark to designate the boundary of land; any, mark or fixed object (as a marked tree, a stone, a ditch, or a heap of stones) by which the limits of a farm, a town, or other portion of territory may be known and preserved. 2. Any conspicuous object on land that serves as a guide; some prominent object, as a hill or steeple. Landmarks of history, important events by which eras or conditions are determined. Origin: AS. Landmearc. See Land, and Mark a sign. Source: Websters Dictionary (01 Mar 1998) |
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| Landolfi's sign | <clinical sign> In aortic insufficiency, systolic contraction and diastolic dilation of the pupil. (05 Mar 2000) |
| Landolt | Edmund, French ophthalmologist, 1846-1926. See: Landolt's bodies. (05 Mar 2000) |
| Landolt's bodies | Bipolar nerve cells lying between the retinal rods and cones in amphibia, reptiles, and birds. (05 Mar 2000) |
| Landouzy | Louis T.J., French neurologist, 1845-1917. See: Landouzy-Dejerine dystrophy, Landouzy-Grasset law. (05 Mar 2000) |
| Landouzy-Dejerine dystrophy | A relatively benign type of muscular dystrophy commencing in childhood and slowly progressive; characterised by wasting and weakness, sometimes asymmetrical, mainly of the muscles of the face, shoulder girdle, and arms; autosomal dominant inheritance. Synonym: facioscapulohumeral atrophy, Landouzy-Dejerine dystrophy. (05 Mar 2000) |
| Landouzy-Grasset law | In lesions of one hemisphere, the patient's head is turned to the side of the affected muscles if there is spasticity and to that of the cerebral lesion if there is paralysis. Synonym: Grasset's law. (05 Mar 2000) |
| Landry syndrome | <neurology, syndrome> Acute infective polyneuritis that results in a form of peripheral neuropathy with temporary loss of movement and sensation due to inflammation of multiple nerves and loss of myelin. The exact cause is unknown but has been associated with an abnormal immune response to viral infection, particularly cytomegalovirus infection, in which there is cell-mediated immunity to a component of myelin. The disease may be autoimmune in origin and complete recovery can take up to six months. Synonym: Guillain-Barre syndrome (12 Jul 2000) |
| Landry's paralysis | <neurology, syndrome> Acute infective polyneuritis that results in a form of peripheral neuropathy with temporary loss of movement and sensation due to inflammation of multiple nerves and loss of myelin. The exact cause is unknown but has been associated with an abnormal immune response to viral infection, particularly cytomegalovirus infection, in which there is cell-mediated immunity to a component of myelin. The disease may be autoimmune in origin and complete recovery can take up to six months. Synonym: Guillain-Barre syndrome (12 Jul 2000) |
| Landry, Jean | <person> French physician, 1826-1865. See: Landry's paralysis, Landry syndrome, Landry-Guillain-Barre syndrome. (05 Mar 2000) |
| Landry-Guillain-Barre syndrome | <neurology, syndrome> Acute infective polyneuritis that results in a form of peripheral neuropathy with temporary loss of movement and sensation due to inflammation of multiple nerves and loss of myelin. The exact cause is unknown but has been associated with an abnormal immune response to viral infection, particularly cytomegalovirus infection, in which there is cell-mediated immunity to a component of myelin. The disease may be autoimmune in origin and complete recovery can take up to six months. Synonym: Guillain-Barre syndrome (12 Jul 2000) |
| landscape | 1. A portion of land or territory which the eye can comprehend in a single view, including all the objects it contains. 2. A picture representing a scene by land or sea, actual or fancied, the chief subject being the general aspect of nature, as fields, hills, forests, water. Etc. 3. The pictorial aspect of a country. "The landscape of his native country had taken hold on his heart." (Macaulay) Landscape gardening, The art of laying out grounds and arranging trees, shrubbery, etc, in such a manner as to produce a picturesque effect. Origin: D. Landschap; land land + -schap, equiv. To E. -schip; akin to G. Landschaft, Sw. Landskap, Dan. Landskab. See Land, and -schip. Source: Websters Dictionary (01 Mar 1998) |
| Landschutz tumour | A transplantable, possibly isoantigenic, highly virulent neoplasm which can be grown in any strain of mice; the host is killed in a few days by what is apparently an anaplastic carcinoma. (05 Mar 2000) |
| Landsteiner | Karl, Austrian-U.S. Pathologist and Nobel laureate, 1868-1943. See: Landsteiner-Donath test, Donath-Landsteiner cold autoantibody, Donath-Landsteiner phenomenon. (05 Mar 2000) |
| Landsteiner, Karl | <person> This native of Vienna in 1900 discovered iso-agglutinins in human blood and then showed that blood had specific groups, which was responsible for the safety of giving blood transfusions. With Alexander Weiner, he discovered the Rh factor in human blood. Along with Poppen he proved that poliomyelitis could be transmitted to subhuman primates by intraspinal injection. From 1892 to 1943 Landsteiner published 346 scientific articles. In 1930, he became a winner of the Nobel Prize. Lived: 1868-1943. (15 Nov 1997) |