| shellac base | A resinous wafer adapted to maxillary or mandibular casts to form baseplates. (05 Mar 2000) |
|---|---|
| shellapple | <zoology> See Sheldafle. Source: Websters Dictionary (01 Mar 1998) |
| shellbark | <botany> A species of hickory (Carya alba) whose outer bark is loose and peeling; a shagbark; also, its nut. Source: Websters Dictionary (01 Mar 1998) |
| shelled | <zoology> Having a shell. Source: Websters Dictionary (01 Mar 1998) |
| shellfish | <zoology> Any aquatic animal whose external covering consists of a shell, either testaceous, as in oysters, clams, and other mollusks, or crustaceous, as in lobsters and crabs. Source: Websters Dictionary (01 Mar 1998) |
| shelter | 1. That which covers or defends from injury or annoyance; a protection; a screen. "The sick and weak the healing plant shall aid, From storms a shelter, and from heat a shade." (Pope) 2. One who protects; a guardian; a defender. "Thou [God] hast been a shelter for me." (Ps. Lxi. 3) 3. The state of being covered and protected; protection; security. "Who into shelter takes their tender bloom." (Young) Shelter tent,a small tent made of pieces of cotton duck arranged to button together. In field service the soldiers carry the pieces. Synonym: Asylum, refuge, retreat, covert, sanctuary, protection, defense, security. Origin: Cf. OE. Scheltrun, shiltroun, schelltrome, scheldtrome, a guard, squadron, AS. Scildtruma a troop of men with shields; scild shield + truma a band of men. See Shield. Source: Websters Dictionary (01 Mar 1998) |
| sheltered workshops | Protective places of employment for disabled persons which provide training and employment on a temporary or permanent basis. (12 Dec 1998) |
| Shemin cycle | A series of metabolic steps in which glycine is condensed with succinyl-CoA and is then oxidised to CO2 and H2O with regeneration of the succinyl-CoA; important in the synthesis of d-aminolevulinic acid and in the metabolism of red blood cells. Synonym: Shemin cycle. (05 Mar 2000) |
| Shemin, David | <person> U.S. Biochemist, *1911. See: Shemin cycle. (05 Mar 2000) |
| Shenton's line | A curved line formed by the top of the obturator foramen and the inner side of the neck of the femur, seen on an anteroposterior frontal radiograph of a normal hip joint; it is disturbed in lesions of the joint such as dislocation or fracture. (05 Mar 2000) |
| Shenton, Edward | <person> English radiologist, 1872-1955. See: Shenton's line. (05 Mar 2000) |
| shepard fracture | <radiology> Fracture of the lateral tubercle of the posterior process of the talus (12 Dec 1998) |
| shepherd | 1. A man employed in tending, feeding, and guarding sheep, especially. A flock grazing at large. 2. The pastor of a church; one with the religious guidance of others. <zoology> Shepherd bird, a breed of dogs used largely for the herding and care of sheep. There are several kinds, as the collie, or Scotch shepherd dog, and the English shepherd dog. Called also shepherd's dog. Shepherd dog, a name of Pan. Shepherd kings, the chiefs of a nomadic people who invaded Egypt from the East in the traditional period, and conquered it, at least in part. They were expelled after about five hundred years, and attempts have been made to connect their expulsion with narrative in the book of Exodus. <botany> Shepherd's club, the small teasel. Origin: OE. Schepherde, schephirde, AS. Sceaphyrde; sceap sheep + hyrde, hirde, heorde, a herd, a guardian. See Sheep, and Herd. Source: Websters Dictionary (01 Mar 1998) |
| Shepherd's fracture | A fracture of the external tubercle (posterior process) of the talus, sometimes mistaken for a displacement of the os trigonum. (05 Mar 2000) |
| Shepherd, Francis | <person> Canadian surgeon, 1851-1929. See: Shepherd's fracture. (05 Mar 2000) |