| sabadilla | <botany> A Mexican liliaceous plant (Schaenocaulon officinale); also, its seeds, which contain the alkaloid veratrine. It was formerly used in medicine as an emetic and purgative. Origin: Sp. Cebadilla. Source: Websters Dictionary (01 Mar 1998) |
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| sabal | <botany> A genus of palm trees including the palmetto of the Southern United States. Source: Websters Dictionary (01 Mar 1998) |
| sabbat | In mediaeval demonology, the nocturnal assembly in which demons and sorcerers were thought to celebrate their orgies. See: Sabbath. Source: Websters Dictionary (01 Mar 1998) |
| sabbaton | A round-toed, armed covering for the feet, worn during a part of the sixteenth century in both military and civil dress. Origin: Cf. Sp. Zapaton, a large shoe, F. Sabot a wooden shoe. Source: Websters Dictionary (01 Mar 1998) |
| sabella | <zoology> A genus of tubiculous annelids having a circle of plumose gills around head. Origin: NL, fr. L. Sabulum gravel. Source: Websters Dictionary (01 Mar 1998) |
| sabellianism | The doctrines or tenets of Sabellius. See Sabellian. Source: Websters Dictionary (01 Mar 1998) |
| sabelloid | <zoology> Like, or related to, the genus Sabella. Sabel"loid. Origin: Sabella. Source: Websters Dictionary (01 Mar 1998) |
| saber shin | The sharp-edged anteriorly convex tibia in congenital syphilis. (05 Mar 2000) |
| saber tibia | Deformity of the tibia occurring in tertiary syphilis or yaws, the bone having a marked forward convexity as a result of the formation of gummas and periostitis. (05 Mar 2000) |
| saber-sheath trachea | A type of tracheal collapse seen in chronic obstructive pulmonary disease in which there is an increase in the outer posterior tracheal dimension with side-to-side narrowing involving the lower 2/3 of the trachea. (05 Mar 2000) |
| sabian | 1. Of or pertaining to Saba in Arabia, celebrated for producing aromatic plants. 2. Relating to the religion of Saba, or to the worship of the heavenly bodies. Origin: L. Sabaeus Alternative forms: Sabean, and Sabaeanism. Source: Websters Dictionary (01 Mar 1998) |
| sabicu | The very hard wood of a leguminous West Indian tree (Lysilona Sabicu), valued for shipbuilding. Source: Websters Dictionary (01 Mar 1998) |
| sabin vaccine | Oral Polio virus Vaccine (OPV). The polio virus in opv is attenuated (weakened). The sabin vaccine is named after the american virologist albert sabin. See immunization, polio. (12 Dec 1998) |
| Sabin, Albert | <person> Polish-U.S. Virologist, 1906-1993. See: Sabin vaccine, Sabin-Feldman dye test. (05 Mar 2000) |
| Sabin-Feldman dye test | A method for the detection of anti-toxoplasma antibody in serum, based on the fact that Toxoplasma gondii cells (from peritoneal exudate in mice) are fairly well stained with alkaline methylene blue, whereas organisms in a serum that contains specific antibody have no affinity for the dye; furthermore, normal toxoplasma cells become rounded, and the nucleus and cytoplasm deeply stained, when treated with the methylene blue; on the other hand, when dye is mixed with organisms and antibody, the cells retain their crescent shape and only the shrunken nuclear endosome is stained. (05 Mar 2000) |