| lodicule | <plant biology> One of a pair of tiny scales in a grass floret, between the lemma and the fertile parts of the flower, which may be reduced perianth segments. (09 Oct 1997) |
|---|---|
| Loeb, Leo | <person> U.S. Pathologist, 1869-1959. See: Loeb's deciduoma. (05 Mar 2000) |
| loeffler pneumonia | <radiology> Idiopathic, local, nonsegmental areas of TRANSIENT consolidation, most dense at periphery, reversed oedema pattern, peripheral eosinophilia, benign course differentiate from: chronic eosinophilic pneumonia, mucoid impaction (with or without ABPA) (12 Dec 1998) |
| Loeffler's bacillus | <bacteria> A species of gram-positive, asporogenous bacteria in which three cultural types are recognised. These types (gravis, intermedius, and mitis) were originally given in accordance with the clinical severity of the cases from which the different strains were most frequently isolated. This species is the causative agent of diphtheria. (12 Dec 1998) |
| Loeffler's blood culture medium | A culture medium consisting of beef blood serum, sheep blood serum, and beef bouillon containing peptone, glucose, and sodium chloride; used for the isolation of Corynebacterium diphtheriae. (05 Mar 2000) |
| Loeffler's caustic stain | <technique> A stain for flagella, utilizing an aqueous solution of tannin and ferrous sulfate with the addition of an alcoholic fuchsin stain. (05 Mar 2000) |
| Loeffler's methylene blue | A stain for diphtheria organisms that contains methylene blue in dilute ethanol plus a slight amount of potassium hydroxide; dye solution gives best results when aged to a polychrome state. (05 Mar 2000) |
| Loeffler's stain | <technique> A stain for flagella; the specimen is treated with a mixture of ferrous sulfate, tannic acid, and alcoholic fuchsin, then stained with aniline-water fuchsin or gentian violet made alkaline with sodium hydroxide solution. (05 Mar 2000) |
| Loeffler's syndrome | <syndrome> A self-limiting inflammation in the lungs where there is associated infiltration of eosinophils into lung tissue. Chest X-ray reveals pulmonary infiltrates and full blood count (CBC) shows increased numbers of eosinophils. The cause is unknown and the disease often resolves without treatment. Some forms may be treated with oral corticosteroids. Complications include restrictive cardiomyopathy due to fibrosis of the lining of the heart. (27 Sep 1997) |
| Loeffler, Friedrich | <person> German bacteriologist and surgeon, 1852-1915. See: Loeffler's bacillus, Loeffler's blood culture medium, Loeffler's stain, Loeffler's caustic stain, Loeffler's methylene blue, Klebs-Loeffler bacillus. (05 Mar 2000) |
| loellingite | <chemical> A tin-white arsenide of iron, isomorphous with arsenopyrite. Origin: So called from Lolling, in Austria. Source: Websters Dictionary (01 Mar 1998) |
| loess | An extremely fertile, yellowish, fine loamy soil of wind-deposited silt, often composed of the following mineral components: quartz, feldspar, horneblende, mica, and clay minerals. The silt is blown in from dry, arid places and have glacial origins. Thick deposits of loess are found on the east side of the Mississippi and Illinois rivers, and hill prairies occur on some of these deposits. The loess carried down from the highlands north of the Tibetan plateau to the North China Plain by the Yellow River (so named because of its colour due to the loess) played an important role in the development of ancient Chinese civilisation. (09 Oct 1997) |
| loeven's larva | <zoology> The peculiar larva of Polygordius. See Polygordius. Origin: Named after the Swedish zoologist, S. F. Loven, who discovered it. Source: Websters Dictionary (01 Mar 1998) |
| Loevit's cell | <haematology> Rather noncommittal name for a nucleated cell of the bone marrow that gives rise to erythrocytes. See: normoblasts, BFU E, CFU E, primitive and definitive erythroblasts (18 Nov 1997) |
| Loevit, Moritz | <person> Austrian pathologist, 1851-1918. See: Loevit's cell. (05 Mar 2000) |