| malarial crescent | The male or female gametocyte(s) of Plasmodium falciparum, whose presence in human red blood cells is diagnostic of falciparum malaria. Synonym: crescent, sickle form. Myopic crescent, a white or grayish white crescentic area in the fundus of the eye located on the temporal side of the optic disk; caused by atrophy of the choroid, permitting the sclera to become visible. Synonym: myopic conus. Sublingual crescent, the crescent-shaped area on the floor of the mouth formed by the lingual wall of the mandible and the adjacent part of the floor of the mouth. (05 Mar 2000) |
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| malarial haemoglobinuria | A condition, now uncommon, resulting from Plasmodium falciparum infection (malignant tertian malaria with severe haemolysis); frequently seen in Caucasians after interrupted treatment with quinine. Synonym: blackwater fever, haemoglobinuric fever, West African fever. (05 Mar 2000) |
| malarial knobs | Rounded protrusions of a red blood cell infected with Plasmodium falciparum, responsible for the adhesion of infected red cells to one another and to the endothelium of the blood vessels containing these infected cells; results in capillary blockage responsible for much of the pathology of malignant tertian malaria. (05 Mar 2000) |
| malarial periodicity | A clinical rhythmicity reflected in periodic fevers and chills recurring at approximately 48-hour intervals in tertian malaria (Plasmodium vivax or P. Ovale) or at 72-hour intervals in quartan malaria (Periodicity malariae); the rhythm of tertian or 48-hour cycles is frequently modified in malignant tertian or falciparum malaria (P. Falciparum); associated with release of merozoites from red cells during erythrocytic schizogony, although the controlling mechanism for the synchronous release is unknown. (05 Mar 2000) |
| malarial pigment | A dark brown, granular pigment which rotates the plane of polarised light and has other properties similar to formalin pigment; occurs in parasites, such as Plasmodium malariae, around brain capillaries, and in fixed macrophages of spleen, liver, bone marrow, and lymph nodes. See: malarial pigment stain. (05 Mar 2000) |
| malarial pigment stain | <technique> A stain using phloxine-toluidine blue O sequence; malarial pigment and nuclei are bluish, erythrocytes and cytoplasm are red to orange; found in phagocytic cells of the reticuloendothelial system. (05 Mar 2000) |
| malariology | A study of malaria in all aspects, with particular reference to epidemiology and control. (05 Mar 2000) |
| malarious | Of or pertaining, to or infected by, malaria. <medicine> Malarial fever, a fever produced by malaria, and characterised by the occurrence of chills, fever, and sweating in distinct paroxysms, at intervals of definite and often uniform duration, in which these symptoms are wholly absent (intermittent fever), or only partially so (remittent fever); fever and ague; chills and fever. Source: Websters Dictionary (01 Mar 1998) |
| malashaganay | <zoology> The fresh water drumfish (Haploidonotus grunniens). Origin: Indian name. Source: Websters Dictionary (01 Mar 1998) |
| Malassez' epithelial rests | Epithelial remains of Hertwig's root sheath in the periodontal ligament. (05 Mar 2000) |
| Malassez, Louis | <person> French physiologist, 1842-1910. See: Malassezia, Malassez' epithelial rests. (05 Mar 2000) |
| malassezia | A hypomycete (12 Dec 1998) |
| Malassezia furfur | A fungus species which causes tinea versicolor and which may cause folliculitis. Synonym: Pityrosporum orbiculare. (05 Mar 2000) |
| Malassezia ovalis | A species of yeast found in superficial epidermal scales and hair follicles on oily skin, of borderline pathogenicity; may cause seborrheic dermatitis associated with immune deficiency. Synonym: Pityrosporum ovale. (05 Mar 2000) |
| malassimilation | <physiology> Imperfect digestion of the several leading constituents of the food. An imperfect elaboration by the tissues of the materials brought to them by the blood. Origin: Mal- + assimilation. Source: Websters Dictionary (01 Mar 1998) |