| Biebrich scarlet red | Synonym: scarlet red. Origin: Biebrich, Germany (05 Mar 2000) |
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| Bizzozero's red cells | Nucleated red blood cells in human blood. (05 Mar 2000) |
| brilliant vital red | Trisodium salt of a sulfonated diazo dye (a ditolyl group diazotised to sulfonated aminonaphthalene residues), used as a vital stain. Synonym: brilliant vital red. (05 Mar 2000) |
| red | Of the colour of blood, or of a tint resembling that colour; of the hue of that part of the rainbow, or of the solar spectrum, which is furthest from the violet part. "Fresh flowers, white and reede." "Your colour, I warrant you, is as red as any rose." (Shak) Red is a general term, including many different shades or hues, as scarlet, crimson, vermilion, orange red, and the like. Red is often used in the formation of self-explaining compounds; as, red-breasted, red-cheeked, red-faced, red-haired, red-headed, red-skinned, red-tailed, red-topped, red-whiskered, red-coasted. Red admiral, kermesite. See Kermes mineral, under Kermes. <botany> Red ash, any species of noctuid moths belonging to Catacola and allied genera. The numerous species are mostly large and handsomely coloured. The under wings are commonly banded with bright red or orange. Red water, a disease in cattle, so called from an appearance like blood in the urine. Origin: OE. Red, reed, AS. Red, red; akin to OS. Rd, OFries, rd, D. Rood, G. Roht, rot, OHG. Rt, Dan. & Sw. Rd, Icel. Raur, rjr, Goth. Ruds, W. Rhudd, Armor. Ruz, Ir. & Gael. Ruadh, L. Ruber, rufus, Gr, Skr. Rudhira, rohita; cf. L. Rutilus. Cr. Erysipelas, Rouge, Rubric, Ruby, Ruddy, Russet, Rust. 1. The colour of blood, or of that part of the spectrum farthest from violet, or a tint resembling these. "Celestial rosy red, love's proper hue." 2. A red pigment. 3. An abbreviation for Red Republican. See Red. 4. <medicine> The menses. English red, a pigment prepared by the Dutch, similar to Indian red. Hypericum red, a red resinous dyestuff extracted from Hypericum. Indian red. See Indian, and Almagra. Source: Websters Dictionary (01 Mar 1998) |
| red atrophy | Atrophy due to destruction of the parenchymatous cells of an organ as a consequence of chronic venous congestion. Synonym: red atrophy. (05 Mar 2000) |
| red bone marrow | Bone marrow in which the meshes contain the developmental stages of erythrocytes, leukocytes, and megakaryocytes. Synonym: medulla ossium rubra. (05 Mar 2000) |
| red corpuscle | A red blood cell. (18 Nov 1997) |
| red corpuscles | Red corpuscles are cells that carry oxygen in the blood. They are also called red blood cells or rbcs. (12 Dec 1998) |
| red cross | An international agency providing various humanitarian services. (12 Dec 1998) |
| 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) |