| gynostegium | <plant biology> A protective covering for a gynaecium, especially as formed by the union of stamens and style. (17 Mar 1998) |
|---|---|
| gypsies | Ethnic group coming originally from india and entering europe in the 14th or 15th century. Many still maintain somewhat their itinerant life and tribal organization. (12 Dec 1998) |
| gypsography | The act or art of engraving on gypsum. Source: Websters Dictionary (01 Mar 1998) |
| gypsum | <chemical> A mineral consisting of the hydrous sulphate of lime (calcium). When calcined, it forms plaster of Paris. Selenite is a transparent, crystalline variety; alabaster, a fine, white, massive variety. Origin: L. Gypsum, Gr.; cf. Ar. Jibs plaster, mortar, Per. Jabsn lime. Source: Websters Dictionary (01 Mar 1998) |
| gypsy | 1. One of a vagabond race, whose tribes, coming originally from India, entered Europe in 14th or 15th centry, and are now scattered over Turkey, Russia, Hungary, Spain, England, etc, living by theft, fortune telling, horsejockeying, tinkering, etc. "Like a right gypsy, hath, at fast and loose, Beguiled me to the very heart of loss." (Shak) 2. The language used by the gypsies. 3. A dark-complexioned person. 4. A cunning or crafty person Origin: OE. Gypcyan, F. Gyptien Egyptian, gypsy, L. Aegyptius. See Egyptian] [Also spelled gipsy and gypsey. (16 Mar 1998) |
| gypsywort | <botany> A labiate plant (the Lycopus Europaeus). Gypsies are said to stain their skin with its juice. Source: Websters Dictionary (01 Mar 1998) |
| gyracanthus | <paleontology> A genus of fossil fishes, found in Devonian and carboniferous strata; so named from their round, sculptured spines. Origin: NL, fr. Gr, round + spine. Source: Websters Dictionary (01 Mar 1998) |
| gyral | 1. Moving in a circular path or way; whirling; gyratory. 2. <anatomy> Pertaining to a gyrus, or convolution. See: Gyre. Source: Websters Dictionary (01 Mar 1998) |
| gyral brain calcification | <radiology> Sturge-Weber-Dimitri syndrome, treated CNS lymphoma, post-meningoencephalitis, brain tumour (oligodendroglioma) (12 Dec 1998) |
| gyrase | The procaryotic topoisomerase II that utilises ATP to generate negative supercoils of DNA. Origin: L. Gyro, to turn in a circle, fr. Gyrus, G. Gyros (05 Mar 2000) |
| gyrate | 1. Of a convoluted or ring shape. 2. To revolve. Origin: L. Gyro, pp. Gyratus, to turn round in a circle, gyrus (05 Mar 2000) |
| gyrate atrophy | Progressive, autosomal recessive, diffuse atrophy of the choroid, pigment epithelium, and sensory retina that begins in childhood. (12 Dec 1998) |
| gyrate atrophy of choroid and retina | A slowly progressive atrophy of the choriocapillaris, pigmentary epithelium, and sensory retina, with irregular confluent atrophic areas and an associated ornithinuria; autosomal recessive inheritance; due to a deficiency of ornithine d-aminotransferase. (05 Mar 2000) |
| gyration | 1. The act of turning or whirling, as around a fixed center; a circular or spiral motion; motion about an axis; rotation; revolution. "The gyrations of an ascending balloon." (De Quincey) "If a burning coal be nimbly moved round in a circle, with gyrations continually repeated, the whole circle will appear like fire." (Sir I. Newton) 2. <zoology> One of the whorls of a spiral univalve shell. Center of gyration. 3. <physics> Radius of gyration the distance between the axis of a rotating body and its center of gyration. Source: Websters Dictionary (01 Mar 1998) |
| gyrectomy | Excision of a cerebral gyrus. Origin: G. Gyros, ring, + ektome, excision (05 Mar 2000) |