| BD | barbital-dependent; barbiturate dependence; base deficit; base of prism down; basophilic degeneratio... |
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| BI | background interval; bacterial or bactericidal index; base-in [prism]; basilar impression; Billroth ... |
| BO | Bachelor of Osteopathy; base of prism out; behavior objective; belladonna and opium; body odor; bowe... |
| BU | base of prism up; Bethesda unit; blood urea; Bodansky unit; bromouracil; burn unit |
| PD | Doctor of Pharmacy; Dublin Pharmacopoeia; interpupillary distance; Paget disease; pancreatic duct; p... |
| PRISM | Paediatric Risk of Mortality |
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| PD | prism diopter |
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| prism | <microscopy> A transparent body with at least two polished plane faces inclined with respect to each other, from which light is reflected or through which light is refracted. When light is refracted by a prism whose refractive index exceeds that of the surrounding medium, it is deviated or bent toward the thicker part of the prism. (05 Aug 1998) |
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| prism bar | A graduated series of prism bar's mounted on a frame and used in ocular diagnosis. (05 Mar 2000) |
| prism cover test | Measurement of the deviation in strabismus by the alternate cover test combined with neutralization for the deviation using prisms. (05 Mar 2000) |
| prism diopter | The unit of measurement of the deviation of light in passing through a prism, being a deflection of 1 cm at a distance of 1 m. (05 Mar 2000) |
| prism illuminator | <microscopy> A 45 to ~0-degree prism interposed in the tube of a light microscope for the purpose of directing an intense beam of light through the objective onto the object. The prism illuminator utilises about one half the aperture of the objective as does the mirror illuminator with an attending loss of resolution over that obtainable with either a plane glass illuminator or a pellicle mirror. See: metallography, Nicol prism. (05 Aug 1998) |
| prism vergence test | Measurement of the amplitude of fusion by placing prisms of gradually increasing power in the direction tested until diplopia occurs. (05 Mar 2000) |
| prisma | A structure resembling a prism. Origin: G. Something sawed, a prism (05 Mar 2000) |
| prismata adamantina | The calcified, microscopic rods radiating from the surface of the dentin, forming the substance of the enamel of a tooth. Synonym: enamel fibres, enamel prisms, enamel rods. (05 Mar 2000) |
| prismatic | Relating to or resembling a prism. (05 Mar 2000) |
| prismatical | 1. Resembling, or pertaining to, a prism; as, a prismatic form or cleavage. 2. Separated or distributed by a prism; formed by a prism; as, prismatic colours. 3. <chemistry> Same as Orthorhombic. <chemistry> Prismatic borax, borax crystallized in the form of oblique prisms, with ten molecules of water; distinguished from octahedral borax. <optics> Prismatic colours, the spectrum produced by the passage of light through a prism. Origin: Cf. F. Prismatique. Source: Websters Dictionary (01 Mar 1998) |
| prismr | <physics> A transparent body with at least two polished plane faces inclined with respect to each other, from which light is reflected or through which light is refracted. When light is refracted by a prism whose refractive index exceeds that of the surrounding medium, it is deviated or bent toward the thicker part of the prism. (05 Aug 1998) |
| refracting angle of a prism | The angle between two plane surfaces of a prism. Synonym: refracting angle of a prism. (05 Mar 2000) |
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| Risley's rotary prism | A prism with a circular base that is rotated in a metal frame marked with a scale; used in examination of ocular muscle imbalance. (05 Mar 2000) |
| Nicol prism | <physics> A prism, used for polarizing or analysing light, made by cementing together, with Canada balsam, two pieces of calcite in such a way that the extraordinary ray from the first piece passes through the second piece while the ordinary ray is reflected to the side into an absorbing layer of black paint. When two Nicol prisms are crossed, therefore, no light passes through. A polarizing prism made of two pieces of calcite specially cut, ground, polished and cemented. A transmitted beam splits into two polarized components, one of which is refracted into and absorbed by the asphalt mount. The remaining polarized beam is transmitted. Modifications of this prism are common. The Nicol prism (nicol) has generally been superseded by a polarizing film such as Polaroid. See: polars, polarizer, analyser. (05 Aug 1998) |
| tidal prism | The change in the volume of water covering an area, such as a wetland, between a low tide and the subsequent high tide. (09 Oct 1997) |
| Fresnel prism | A prism composed of concentric annular rings. (05 Mar 2000) |
| prism |
a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms optical device having a triangular shape and made of glass or quartz; used to deviate a beam or invert an image
Ãâó: wordnet.princeton.edu/perl/webwn
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| prismatic |
of or relating to or resembling or constituting a prism; "prismatic form" exhibiting spectral colors formed by refraction of light through a prism; "prismatic light"
Ãâó: wordnet.princeton.edu/perl/webwn
|
| prismoid |
a prismatoid whose bases are polygons having the same number of sides and whose other faces are trapezoids or parallelograms
Ãâó: wordnet.princeton.edu/perl/webwn
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| prism diopter |
1 prism diopter is the angle determined by a deviation of 1 cm at one meter. 4 degrees = 7 PD
Ãâó: www.geocities.com/sapatney/terminology.htm
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| prism diopter |
a unit of prismatic deviation; deflection of one centimeter at a distance of one meter.
Ãâó: www.merckmedicus.com/pp/us/hcp/thcp_dorlands_conte...
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| prism | optical device having a triangular shape and made of glass or quartz |
|---|---|
| prism | a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms |
| prism | an optical instrument for spectrographic analysis |
| prism | exhibiting spectral colors formed by refraction of light through a prism |
| prism | of or relating to or resembling or constituting a prism |
| prism | a polyhedron whose vertices all lie in one or the other of two parallel planes |
| prism | a prismatoid whose bases are polygons having the same number of sides and whose other faces are trapezoids or parallelograms |
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