| Steele, John | <person> Canadian neurologist, fl. 1951-1968. See: Steele-Richardson-Olszewski disease, Steele-Richardson-Olszewski syndrome. (05 Mar 2000) |
|---|---|
| Steele-Richardson-Olszewski disease | A disorder that is associated with nerve cell destruction and progressive lack of coordination, neck stiffness, trunk stiffness, problems with eye movement and mild dementia. Disorders that are similar include Alzheimer's disease, cerebellar dysfunction, Jakob-Creutzfeldt disease and Parkinson's disease. The cause for progressive supranuclear palsy is unknown, but is likely a degenerative nerve disorder that is somehow triggered by a viral infection. Pathologic changes include nerve cell damage and destruction of myelin sheath. There is no known cure. (27 Sep 1997) |
| Steele-Richardson-Olszewski syndrome | A disorder that is associated with nerve cell destruction and progressive lack of coordination, neck stiffness, trunk stiffness, problems with eye movement and mild dementia. Disorders that are similar include Alzheimer's disease, cerebellar dysfunction, Jakob-Creutzfeldt disease and Parkinson's disease. The cause for progressive supranuclear palsy is unknown, but is likely a degenerative nerve disorder that is somehow triggered by a viral infection. Pathologic changes include nerve cell damage and destruction of myelin sheath. There is no known cure. (27 Sep 1997) |
| steelhead | 1. <zoology> A North Pacific salmon (Salmo Gairdneri) found from Northern California to Siberia. Synonym: hardhead, and preesil. 2. <zoology> The ruddy duck. Source: Websters Dictionary (01 Mar 1998) |
| Steell's murmur | <cardiology, clinical sign> An early diastolic murmur of pulmonary insufficiency secondary to pulmonary hypertension, as in mitral stenosis and various congenital defects associated with pulmonary hypertension. Synonym: Steell's murmur. (05 Mar 2000) |
| Steell, Graham | <person> British physician, 1851-1942. See: Graham Steell's murmur. (05 Mar 2000) |
| steely | 1. Made of steel; consisting of steel. "The steely point of Clifford's lance." "Around his shop the steely sparkles flew." (Gay) 2. Resembling steel; hard; firm; having the colour of steel. "His hair was steely gray." "She would unarm her noble heart of that steely resistance against the sweet blows of love." (Sir P. Sidney) Steely iron, a compound of iron containing less than one half of one per cent of carbon. Source: Websters Dictionary (01 Mar 1998) |
| steelyard | A form of balance in which the body to be weighed is suspended from the shorter arm of a lever, which turns on a fulcrum, and a counterpoise is caused to slide upon the longer arm to produce equilibrium, its place upon this arm (which is notched or graduated) indicating the weight; a Roman balance; very commonly used also in the plural form, steelyards. Origin: So named from a place in London called the Steelyard, which was a yard in which steel was sold. Source: Websters Dictionary (01 Mar 1998) |
| Steenbock unit | A unit of vitamin D; the total amount of vitamin D which will produce within 10 days a narrow line of calcium deposit in the rachitic metaphyses of the distal ends of the radii and ulnae of standard rachitic rats. (05 Mar 2000) |
| Steenbock, Harry | <person> U.S. Physiologist and chemist, 1886-1967. See: Steenbock unit. (05 Mar 2000) |
| steenbok | <zoology> Same as Steinbock. Origin: D. Steen stone + bok buck. Source: Websters Dictionary (01 Mar 1998) |
| steep | To soak in a liquid; to macerate; to extract the essence of by soaking; as, to soften seed by steeping it in water. Often used figuratively. "Let fancy still my sense in Lethe steep." (Shak) "In refreshing dew to steep The little, trembling flowers." (Wordsworth) "The learned of the nation were steeped in Latin." (Earle) Origin: OE. Stepen, probably fr. Icel. Steypa to cause to stoop, cast down, pour out, to cast metals, causative of stupa to stoop; cf. Sw. Stopa to cast, to steep, Dan. Stobe, D. & G. Stippen to steep, to dip. Cf. Stoop. 1. Something steeped, or used in steeping; a fertilizing liquid to hasten the germination of seeds. 2. A rennet bag. Source: Websters Dictionary (01 Mar 1998) |
| steeple | A spire; also, the tower and spire taken together; the whole of a structure if the roof is of spire form. See Spire. "A weathercock on a steeple." Rood steeple. See Rood tower, under Rood. <botany> Steeple bush, a low shrub (Spiraea tomentosa) having dense panicles of minute rose-coloured flowers; hardhack. Steeple chase, a race across country between a number of horsemen, to see which can first reach some distant object, as a church steeple; hence, a race over a prescribed course obstructed by such obstacles as one meets in riding across country, as hedges, walls, etc. Steeple chaser, one who rides in a steeple chase; also, a horse trained to run in a steeple chase. Steeple engine, a vertical back-acting steam engine having the cylinder beneath the crosshead. Steeple house, a church. Origin: OE. Stepel, AS. Stepel, stpel; akin to E. Steep, a. Source: Websters Dictionary (01 Mar 1998) |
| steer | A young male of the ox kind; especially, a common ox; a castrated taurine male from two to four years old. See the Note under Ox. Origin: OE. Steer, AS. Steor; akin to D. & G. Stier a bull, OHG. Stior, Icel. Stjorr, jorr, Sw. Tjur, Dan. Tyr, Goth. Stiur, Russ. Tur', Pol. Tur, Ir. & Gael. Tarbh, W. Tarw, L. Taurus, Gr, Skr. Sthra strong, stout, AS. Stor large, Icel. Storr, OHG. Stri, stiuri. 168. Cf. Stirk, Taurine. To castrate; said of male calves. Source: Websters Dictionary (01 Mar 1998) |
| steering wheel injury | Trauma to the anterior chest wall caused by impact with the steering wheel during an automobile accident; can include fractured sternum and ribs, cardiac contusion, tear of the aorta or other great vessels, as well as lung injuries. (05 Mar 2000) |