| yellow | Being of a bright saffronlike colour; of the colour of gold or brass; having the hue of that part of the rainbow, or of the solar spectrum, which is between the orange and the green. "Her yellow hair was browded [braided] in a tress." (Chaucer) "A sweaty reaper from his tillage brought First fruits, the green ear and the yellow sheaf." (Milton) "The line of yellow light dies fast away. <medicine> " (Keble) Yellow atrophy, a North American fresh water bass (Morone interrupta) native of the lower parts of the Mississippi and its tributaries. It is yellow, with several more or less broken black stripes or bars. Synonym: barfish. Yellow berry. <botany> The European willow warbler. The European wood warbler. Origin: OE. Yelow, yelwe, yelow, yeoluw, from AS. Geolu; akin to D. Geel, OS. & OHG. Gelo, G. Gelb, Icel. Gulr, Sw. Gul, Dan. Guul, L. Helvus light bay, Gr. Young verdure, greenish yellow, Skr. Hari tawny, yellowish. Cf. Chlorine, Gall a bitter liquid, Gold, Yolk. 1. A bright golden colour, reflecting more light than any other except white; the colour of that part of the spectrum which is between the orange and green. "A long motley coat guarded with yellow." 2. A yellow pigment. Cadmium yellow, Chrome yellow, Indigo yellow, King's yellow, etc. See Cadmium, Chrome, etc. Naples yellow, a yellow amorphous pigment, used in oil, porcelain, and enamel painting, consisting of a basic lead metantimonate, obtained by fusing together tartar emetic lead nitrate, and common salt. <chemistry> Patent yellow, a yellow pigment consisting essentially of a lead oxychloride. Synonym: Turner's yellow. Source: Websters Dictionary (01 Mar 1998) |
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| yellow atrophy of the liver | See: acute yellow atrophy of the liver. (05 Mar 2000) |
| yellow body | <gynaecology> A yellow glandular mass in the ovary formed by an ovarian follicle that has matured and discharged its ovum. The corpus luteum secretes progesterone. If the ovum has been impregnated, the corpus luteum increases in size and persists for several months (corpus luteum graviditatis). If impregnation has not taken place, the corpus luteum degenerates and shrinks (corpus luteum menstruationis). Synonym: yellow body of ovary. (13 Nov 1997) |
| yellow bone marrow | Bone marrow in which the meshes of the reticular network are filled with fat. Synonym: medulla ossium flava. (05 Mar 2000) |
| yellow cartilage | A cartilage in which the cells are surrounded by a territorial capsular matrix outside of which is an interterritorial matrix containing elastic fibre networks in addition to the collagen fibres and ground substance. Synonym: yellow cartilage. (05 Mar 2000) |
| yellow corallin | A sodium salt of aurin. (05 Mar 2000) |
| yellow disease | The occurrence of patches of yellow colour in the skin, resembling xanthoma, but without the nodules or plates. Synonym: cholesteroderma, xanthochroia, xanthoderma, xanthopathy, yellow disease, yellow skin. Origin: xantho-+ G. Chroma, colour (05 Mar 2000) |
| yellow enzyme | Any enzyme that possesses a flavin nucleotide as coenzyme; e.g., xanthine oxidase, succinate dehydrogenase. Synonym: yellow enzyme. (05 Mar 2000) |
| yellow-eyed | Having yellow eyes. <botany> Yellow-eyed grass, any plant of the genus Xyris. Source: Websters Dictionary (01 Mar 1998) |
| yellow fat cell | <pathology> An adipocyte that has asingle big fat droplet and very little cytoplasm. (11 May 1997) |
| yellow fever | <microbiology> An acute febrile illness of tropical regions, caused by a group B arbovirus and spread by a mosquito (Aedes aegypti). Characteristic features include: jaundice, black vomit and the absence of urination. Vaccination is available for travelers to endemic areas. (27 Sep 1997) |
| yellow fever vaccination | A live attenuated (weakened) viral vaccine recommended for people traveling to or living in tropical areas in the americas and africa where yellow fever occurs. (12 Dec 1998) |
| yellow fever vaccine | A living, attenuated strain (17D) of yellow fever virus propagated in embryonated fowl eggs. A suspension of dried mouse brain infected with French neurotropic (Dakar) strain of yellow fever virus, administered topically by the scratch method; not officially recommended in the United States because of meningoencephalitic reactions. (05 Mar 2000) |
| yellow fever virus | <virology> A togavirus (Class IV) with an RNA genome responsible for the disease of the name whose symptoms include fever and haemorrhage. Transmitted by the mosquitoes Aedes aegypti and Haemagogus. Only one antigenic type of the virus known and causes fatal hepatitis in many primates, including humans. This virus is endemic to areas of Africa, South America and the Carribean and has been a major epidemic threat. (11 May 1997) |
| yellow fibres | Fibre's that are 0.2 to 2 um in diameter but may be larger in some ligaments; they branch and anastomose to form networks and fuse to form fenestrated membranes; the fibre's and membranes consist of microfibrils about 10 nm wide and an amorphous substance containing elastin. Synonym: yellow fibres. (05 Mar 2000) |