| red cross | An international agency providing various humanitarian services. (12 Dec 1998) |
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| red degeneration | Necrosis, with staining by haemoglobin, which may occur in uterine myomas, especially during pregnancy; marked by softening and a red colour resembling partly cooked meat. Synonym: carneous degeneration. (05 Mar 2000) |
| red drop effect | Experimental observation that the photosynthetic efficiency of monochromatic light is greatly reduced above 680 nm, even though chlorophyll absorbs well up to 700 nm. Led to the discovery of the two light reactions of photosynthesis. See: photosystems I and II. (18 Nov 1997) |
| red fever | An acute infectious disease with fever, headache, and rash, all quite similar to, but milder than, epidemic typhus, caused by a related microoganism, rickettsia typhi (mooseri), transmitted to humans by rat fleas (xenopsylla cheopis). The animal reservoir includes rats, mice and other rodents. Murine typhus occurs sporadically worldwide but is more prevalent in congested rat-infested urban areas. Also known as endemic typhus, rat-flea typhus; urban typhus of malaya). (12 Dec 1998) |
| red fibres | Red striated muscle fibre's that are rich in sarcoplasm, myoglobin, and mitochondria; they are smaller in diameter and contract more slowly than white fibre's. (05 Mar 2000) |
| red-gum | 1. <medicine> An eruption of red pimples upon the face, neck, and arms, in early infancy; tooth rash; strophulus. 2. A name of rust on grain. See Rust. 3. Eucalyptus gum Origin: OE. Reed gounde; AS. Read red + gund matter, pus. Source: Websters Dictionary (01 Mar 1998) |
| red half-moon | <clinical sign> Irregular red discoloration of the usually pale demilune at the base of the fingernail; may be seen in congestive failure, malignant disease, or liver disease, but not specific for any of these. (05 Mar 2000) |
| red-handed | Having hands red with blood; in the very act, as if with red or bloody hands; said of a person taken in the act of homicide; hence, fresh from the commission of crime; as, he was taken red-hand or red-handed. Source: Websters Dictionary (01 Mar 1998) |
| red hepatisation | The first stage of hepatisation in which the exudate is blood-stained. (05 Mar 2000) |
| 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) |
| 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 tide |
Discolouration of surface waters from blooms of phytoplankton. Strictly refers to blooms that produce a reddish-brown colour but often used for blooms of other colours. (see also algal bloom)
Ãâó: www.oceansatlas.com/unatlas/uses/uneptextsph/infop...
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| red tide |
red coloration, usually of coastal waters, caused by large quantities of microscopic organisms (generally dinoflagellates); some red tides result in mass fish kills, others contaminate shellfish, and still others produce no toxic effects respiration---metabolic process by which food or food-storage molecules yield the energy on which all living cells depend
Ãâó: www.aanderaa.com/index.asp
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| red tide |
An overgrowth of one of a number of dinoflagellates that causes discoloration of the water. Some organisms that cause red tides can release neurotoxins.
Ãâó: www.brownmarine.com/ECOSYSTEM04.htm
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| red tide |
Algae bloom involving dinoflagellate phytoplankton species which naturally manufacture biotoxins. Depending upon species, red tides can cause fish kills and several types of shellfish poisoning in human consumers.
Ãâó: www.wetmaap.org/References/glossary.html
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| red tide |
A noticable red or brown discoloration of sea water caused by excessive amounts of nutrients that lead to the growth of microscopic algae. These algae decay and leads to loss of clarity and oxygen depletion, which may kill or restrict fish, shellfish and other marine organisms. Graphic
Ãâó: www.lastormwater.org/WPD/residents/glossary.htm
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