| red induration | A condition observed in lungs in which there is an advanced degree of acute passive congestion, or acute pneumonitis (sometimes termed interstitial pneumonia), or a similar pathologic process. (05 Mar 2000) |
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| red infarct | An infarct red in colour from infiltration of blood from collateral vessels into the necrotic area. Synonym: haemorrhagic gangrene, red infarct. (05 Mar 2000) |
| red lead | A bright orange-red powder that turns black when heated; used in ointments and plasters. Synonym: red lead, red oxide of lead. (05 Mar 2000) |
| red mange | Demodectic mange in dogs. (05 Mar 2000) |
| red muscle | Slow-twitch muscle in which small dark "red" muscle fibres predominate; myoglobin is abundant and great numbers of mitochondria occur, characterised by slow, sustained (tonic) contraction. Contrast with white muscle. (05 Mar 2000) |
| red neuralgia | Disease marked by paroxysmal, bilateral vasodilatation, particularly of the extremities, with burning pain, and increased skin temperature and redness. (12 Dec 1998) |
| red nucleus | A distinctive oval nucleus (pink in fresh specimens because of an iron-containing pigment in many of the cells) centrally placed in the upper mesencephalic reticular formation. It receives fibres from the deep cerebellar nuclei and cerebral cortex and projects fibres to the cerebellum, brainstem, spinal cord, and probably to the thalamus. The nucleus is divided into two regions: pars magnocellularis and pars parvocellularis. (12 Dec 1998) |
| red oxide of lead | A bright orange-red powder that turns black when heated; used in ointments and plasters. Synonym: red lead, red oxide of lead. (05 Mar 2000) |
| red precipitate | mercuric oxide, red |
| red reflex | A triangular area at the anterior inferior part of the tympanic membrane, running from the umbo to the periphery, where there is seen a bright reflection of light. Synonym: cone of light, light reflex, Politzer's luminous cone, red reflex, Wilde's triangle. Malacarne's pyramid, a lobule on the undersurface of the cerebellum, the posterior portion of the vermis. (05 Mar 2000) |
| red-riband | <zoology> The European red band fish, or fireflame. See Rend fish. Source: Websters Dictionary (01 Mar 1998) |
| red-short | <chemistry> Hot-short; brittle when red-hot; said of certain kinds of iron. Red"-shortness. Source: Websters Dictionary (01 Mar 1998) |
| red strawberry tongue | Clinical manifestation of Kawasaki's disease. (05 Mar 2000) |
| red sweat | Reddening of sweat, especially in the axilla, due to pigment produced by Streptomyces roseofulvis. See: chromidrosis. (05 Mar 2000) |
| red-tailed | Having a red tail. <zoology> Red-tailed hawk, a large North American hawk (Buteo borealis). When adult its tail is chestnut red. Synonym: hen hawck, and red-tailed buzzard. Source: Websters Dictionary (01 Mar 1998) |