| marasmoid | Resembling marasmus. Origin: G. Marasmos, withering, + eidos, resemblance (05 Mar 2000) |
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| marasmus | <medicine> A wasting of flesh without fever or apparent disease; a kind of consumption; atrophy; phthisis. "Pining atrophy, Marasmus, and wide-wasting pestilence." (Milton) Marasmus senilis [L], progressive atrophy of the aged. Origin: NL, fr. Gr, fr, to quench, as fire; pass, to die away. Source: Websters Dictionary (01 Mar 1998) |
| marathon group psychotherapy | A type of group psychotherapy characterised by uninterrupted sessions for periods of hours or days, with minimal interruptions for food and rest. (05 Mar 2000) |
| marble | 1. A massive, compact limestone; a variety of calcite, capable of being polished and used for architectural and ornamental purposes. The colour varies from white to black, being sometimes yellow, red, and green, and frequently beautifully veined or clouded. The name is also given to other rocks of like use and appearance, as serpentine or verd antique marble, and less properly to polished porphyry, granite, etc. Breccia marble consists of limestone fragments cemented together. Ruin marble, when polished, shows forms resembling ruins, due to disseminated iron oxide. Shell marble contains fossil shells. Statuary marble is a pure, white, fine-grained kind, including Parian (from Paros) and Carrara marble. If coarsely granular it is called saccharoidal. 2. A thing made of, or resembling, marble, as a work of art, or record, in marble; or, in the plural, a collection of such works; as, the Arundel or Arundelian marbles; the Elgin marbles. 3. A little ball of marble, or of some other hard substance, used as a plaything by children; or, in the plural, a child's game played with marbles. Marble is also much used in self-explaining compounds; when used figuratively in compounds it commonly means, hard, cold, destitute of compassion or feeling; as, marble-breasted, marble-faced, marble-hearted. Origin: OE. Marbel, marbre, F. Marbre, L. Marmor, fr. Gr, fr. To sparkle, flash. Cf. Marmoreal. 1. Made of, or resembling, marble; as, a marble mantel; marble paper. 2. Cold; hard; unfeeling; as, a marble breast or heart. Source: Websters Dictionary (01 Mar 1998) |
| marble bone disease | The formation of abnormally dense bone, as opposed to osteoporosis. (18 Nov 1997) |
| marble bones | The formation of abnormally dense bone, as opposed to osteoporosis. (18 Nov 1997) |
| marble cutters' phthisis | An obsolete term for calcicosis. (05 Mar 2000) |
| marbled | 1. Made of, or faced with, marble. "The marbled mansion." 2. Made to resemble marble; veined or spotted like marble. "Marbled paper." 3. <zoology> Varied with irregular markings, or witch a confused blending of irregular spots and streaks. Source: Websters Dictionary (01 Mar 1998) |
| marbleize | To stain or grain in imitation of marble; to cover with a surface resembling marble; as, to marbleize slate, wood, or iron. Origin: Marbleized; Marbleizing. Source: Websters Dictionary (01 Mar 1998) |
| marbling | 1. The art or practice of variegating in colour, in imitation of marble. 2. An intermixture of fat and lean in meat, giving it a marbled appearance. 3. <ornithology, zoology> Distinct markings resembling the variegations of marble, as on birds and insects. Source: Websters Dictionary (01 Mar 1998) |
| Marburg disease | Infection with an unusual rhabdovirus composed of RNA and lipid, tentatively assigned to the family of Filoviridae. Virus is "pantropic" and affects most organ systems.The disease is characterised by a prominent rash and haemorrhages in many organs and is often fatal. First seen among laboratory workers in Marburg, Germany, exposed to African green monkeys. Some person-to-person spread has been observed. Attempts to isolate virus should be done only in high-security laboratories. Synonym: Marburg virus disease. (05 Mar 2000) |
| Marburg virus | <organism, virology> A filovirus that causes Marburg disease, a severe haemorrhagic fever developed in many people who work with African green monkeys. (18 Nov 1997) |
| marburg virus disease | An RNA virus infection of rhesus, vervet, and squirrel monkeys transmissible to man. (12 Dec 1998) |
| marc | The refuse matter which remains after the pressure of fruit, particularly of grapes. Origin: F. Source: Websters Dictionary (01 Mar 1998) |
| Marcacci's muscle | <anatomy> A sheet of smooth muscle fibres underlying the areola and nipple of the mammary gland. (05 Mar 2000) |