| macle | <chemical> Chiastolite; so called from the tessellated appearance of a cross-section. See Chiastolite. A crystal having a similar tessellated appearance. A twin crystal. Origin: L. Macula a spot: cf. F. Macle. Cf. Mackle, Mascle. Source: Websters Dictionary (01 Mar 1998) |
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| macled | 1. <chemical> Marked like macle (chiastolite). Having a twin structure. See Twin. 2. See Mascled. Source: Websters Dictionary (01 Mar 1998) |
| Macleod's rheumatism | Rheumatoid arthritis with abundant serous effusion in the affected joints. (05 Mar 2000) |
| Macleod's syndrome | A state in which the roentgenographic density of one lung (or one lobe) is markedly less than the density of the other(s) because of the presence of air trapped during expiration. Synonym: Macleod's syndrome, Swyer-James syndrome. (05 Mar 2000) |
| Macleod, Roderick | <person> Scottish physician, 1795-1852. See: Macleod's rheumatism. (05 Mar 2000) |
| Macleod, William Mathieson | <person> British physician, 1911-1977. See: Macleod's syndrome, Swyer-James-MacLeod syndrome. (05 Mar 2000) |
| maclurea | <paleontology> A genus of spiral gastropod shells, often of large size, characteristic of the lower Silurian rocks. Origin: NL. Named from William Maclure, the geologist. Source: Websters Dictionary (01 Mar 1998) |
| maclurin | <chemistry> See Morintannic. Source: Websters Dictionary (01 Mar 1998) |
| MacNeal's tetrachrome blood stain | <technique> A stain for blood smears comprised of a mixture of methylene blue, azure A, methylene violet, and eosin Y. (05 Mar 2000) |
| MacNeal, Ward | <person> U.S. Bacteriologist, 1881-1946. See: MacNeal's tetrachrome blood stain, Novy and MacNeal's blood agar. (05 Mar 2000) |
| Macracanthorhynchus | A genus of giant thorny-headed worms (class Acanthocephala). Origin: macro-+ G. Akantha, thorn, + rhynchos, snout (05 Mar 2000) |
| Macracanthorhynchus hirudinaceus | The giant thorny-headed worm of the pig, approximately the size of the giant roundworm (Ascaris); it inhabits the intestinal tract where nodules develop at the site of penetration of the spiny proboscis of each worm; it has occasionally been reported in man; transmission is by ingestion of infected insects, frequently dung beetles or cockroaches that have fed on faeces of infected pigs containing viable eggs and have developed the cystacanth stage infective to the vertebrate host, including humans. (05 Mar 2000) |
| macrencephalic | Having a large brain. Origin: Macro + encephalic, encephalous. Source: Websters Dictionary (01 Mar 1998) |
| macrencephalous | Having a large brain. Origin: Macro + encephalic, encephalous. Source: Websters Dictionary (01 Mar 1998) |
| macrencephaly | Macrencephalia Hypertrophy of the brain; the condition of having a large brain. Origin: macro-+ G. Enkephalos, brain (05 Mar 2000) |