| scarlet red | O-Tolylazo-o-tolylazo-beta-naphthol. An azo dye; a dark, brownish red powder, soluble in oils, fats, and chloroform, but insoluble in water; used in medicine as a vulnerary, in histology to stain fat in tissue sections and basic proteins at high pH, and in immunoelectrophoresis. Synonym: Biebrich scarlet red, medicinal scarlet red, scharlach red, Sudan IV. (05 Mar 2000) |
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| scarlet red sulfonate | An azo dye that has been used to stimulate healing of chronic superficial wounds and ulcers. (05 Mar 2000) |
| Biebrich scarlet red | Synonym: scarlet red. Origin: Biebrich, Germany (05 Mar 2000) |
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| medicinal scarlet red | O-Tolylazo-o-tolylazo-beta-naphthol. An azo dye; a dark, brownish red powder, soluble in oils, fats, and chloroform, but insoluble in water; used in medicine as a vulnerary, in histology to stain fat in tissue sections and basic proteins at high pH, and in immunoelectrophoresis. Synonym: Biebrich scarlet red, medicinal scarlet red, scharlach red, Sudan IV. (05 Mar 2000) |
| miniature scarlet fever | A reaction consisting of fever, nausea, vomiting, and a transient scarlatiniform rash that appears in a susceptible person when injected with the toxin of Streptococcus pyogenes. Origin: L. Minio, pp. Atus, to colour with minium, red-lead (05 Mar 2000) |
| scarlet | Of the colour called scarlet; as, a scarlet cloth or thread. <zoology> Scarlet admiral, the red admiral. See Red. <botany> Scarlet bean See Tanager. (01 Mar 1998) |
| scarlet fever | An acute illness, characterised by a reddish skin rash, which is caused by a systemic infection with the bacterium Streptococcus pyogenes. (09 Oct 1997) |
| scarlet fever antitoxin | Antitoxin specific for the erythrogenic toxin of strains of group A beta-haemolytic streptococci. (05 Mar 2000) |
| scarlet fever erythrogenic toxin | A culture filtrate of lysogenised group A strains of beta-haemolytic streptococci, erythrogenic when inoculated into the skin of susceptible persons, and neutralised by antibodies that appear during scarlet fever convalescence; three immunological types (A, B, and C) are recognised. Synonym: Dick test toxin, erythrogenic toxin, scarlet fever erythrogenic toxin. (05 Mar 2000) |
| human scarlet fever immune serum | Scarlet fever convalescent serum, obtained from healthy persons who have survived an attack of scarlet fever. (05 Mar 2000) |
| acid red 87 | Eosin Ys, the disodium salt of 2',4',5',7'-tetrabromofluorescein. Synonym: acid red 87, eosin yellowish. (05 Mar 2000) |
| acid red 91 | The disodium salt of 4',5'-dibromo-2',7'-dinitrofluorescein. Synonym: acid red 91, eosin I bluish. (05 Mar 2000) |
| algae, red | Algae of the division rhodophyta, in which the pigment is predominantly red; common genera are gelidium, gracilaria, and polysiphonia. (12 Dec 1998) |
| alizarin red S | Sodium alizarin sulfonate;used as a stain for calcium in bone (calcium appears red-orange, magnesium, aluminum, and barium are varying shades of red), in the determination of fluorine; as a pH indicator it changes from yellow to purple between pH 3.7 and 5.2. (05 Mar 2000) |
| American Red Cross | The national Red Cross society of the United States, established by Congress to assist in caring for the sick and wounded, serving as a communications link between members of the U.S. Armed forces and their families, conducting disaster relief and prevention programs, and furnishing other humanitarian services, the largest of which is a network of regional blood centres providing blood and blood products. (05 Mar 2000) |
| amidonaphthol red | An azo dye, C18H13N3S2Na2, used in light and fluorescence microscopy as a real acid counterstain. Synonym: azophloxin. (05 Mar 2000) |
| Bennhold's Congo red stain | <technique> An amyloid stain useful for amyloid detection in pathologic tissue; gives red staining of amyloid; also induces green birefringence to amyloid under polarised light. (05 Mar 2000) |