| PR | by way of the rectum [Lat. per rectum]; far point [of accommodation] [Lat. punctum remotum]; palindr... |
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| RFR | rapid fluid resuscitation; refraction |
| Cs | standard clearance; static respiratory compliance |
| CST | cardiac stress test; cavernous sinus thrombosis; certified surgical technologist; chemostatin; Chris... |
| Cst | static compliance |
| SCSB | Static Charge Sensitive Bed |
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| SMF | static magnetic field |
| static refraction | Refraction without accommodation. (05 Mar 2000) |
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| angle of refraction | <optics> The angle that a ray leaving a refracting medium makes with a line drawn perpendicular to the surface of this medium. (05 Mar 2000) |
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| refraction | <physics> Bending of waves as they pass from a medium having one refractive index to a medium (or region within a medium) having a different refractive index. (09 Oct 1997) |
| refraction, angle of | <microscopy> The acute angle between the normal to a refracting surface at the point of incidence, and the refracted ray. (05 Aug 1998) |
| refraction, ocular | Refraction of light effected by the media of the eye. It also includes the determination of the refractive state and refractive correction. (12 Dec 1998) |
| double refraction | <microscopy> The refraction of light in two slightly different directions to form two rays or vector components. Each ray is polarized, and their vibration directions are perpendicular to each other. Furthermore, each ray has a different velocity, and therefore a different refractive index. See: birefringence. (05 Aug 1998) |
| dynamic refraction | Refraction of the eye during accommodation. (05 Mar 2000) |
| index of refraction | <physics> For a given wavelength, this is the ratio of the velocity of light in vacuum (c) to the velocity of light in a refractive material (for example, glass, plasma, etc.). (09 Oct 1997) |
| law of refraction | For two given media, the sine of the angle of incidence bears a constant relation to the sine of the angle of refraction. Synonym: Descartes' law, Snell's law. (05 Mar 2000) |
| static arthropathy | Secondary involvement of a joint following disease in a joint of the same extremity; e.g., knee or ankle involvement in hip disease. (05 Mar 2000) |
| static ataxia | Inability to preserve equilibrium while standing, due to loss of myesthesia; present during the resting state. (05 Mar 2000) |
| static bone cyst | An indentation on the lingual surface of the mandible within which a portion of the submandibular gland lies; it appears radiographically as a sharply circumscribed ovoid radiolucency between the mandibular canal and the inferior border of the posterior mandible. Synonym: Stafne bone cyst, static bone cyst. (05 Mar 2000) |
| static compliance | The value obtained when compliance is measured at true equilibrium, i.e., in the absence of any motion. (05 Mar 2000) |
| static friction | The force that must be overcome to initiate the motion of one body relative to another because they have been resting in contact. Compare: dynamic friction. Synonym: static friction. (05 Mar 2000) |
| static gangrene | Moist gangrene due to obstruction in the return circulation. Synonym: venous gangrene. (05 Mar 2000) |
| static hysteresis | The difference in the value reached by a dependent variable at a particular constant value of the independent variable, depending on whether the latter value had been approached from above or below; e.g., in measuring the pressure volume relations of the lungs, if one completely expires and then inspires to a particular volume and holds it constant, the transpulmonary pressure required to maintain that lung volume is greater than if one had completely inspired and then expired to the same volume and held it constant. (05 Mar 2000) |
| static refraction |
the refraction of the eye when its accommodation is paralyzed.
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