(n.) A prism of an orthorhombic crystal between the macropinacoid and the unit prism; the corresponding pyramids are called macropyramids.
Example Sentences:
Prism
Definition:
(n.) A solid whose bases or ends are any similar, equal, and parallel plane figures, and whose sides are parallelograms.
(n.) A transparent body, with usually three rectangular plane faces or sides, and two equal and parallel triangular ends or bases; -- used in experiments on refraction, dispersion, etc.
(n.) A form the planes of which are parallel to the vertical axis. See Form, n., 13.
Example Sentences:
(1) If anyone should have been briefed on Prism and Tempora, it should have been the NSC.
(2) Taking into account the calculated volume and considering the triangular image as one face of the particle, it is suggested that eIF-3 has the shape of a flat triangular prism with a height of about 7 nm and the above-mentioned side-lengths.
(3) In Britain, the European election is overwhelmingly seen through the prism of domestic politics.
(4) Prism fixation disparity curves were determined in three different experimental situations: the routine method according to Ogle, a method to stimulate the synkinetic convergence (Experiment I, with one fixation point as sole binocular stimulus) and a method to stimulate the fusion mechanism (Experiment II, with random dot stereograms).
(5) The authors do not recommend the use of vertical prisms with a power of 9 and 10 pdpt, as mentioned in their preliminary publication.
(6) The averaged anesthetized alignment pertained to the whole group of 6.2 prism diopters of esotropia, which correlated poorly with the preoperative deviation.
(7) Essentially, the slide suggests that the NSA also collects some information under FAA702 from cable intercepts, but that process is distinct from Prism.
(8) Matched, binocular displacing prisms were mounted over the eyes of 19 barn owls (Tyto alba) beginning at ages ranging from 10 to 272 d. In nearly all cases, the visual field was shifted 23 degrees to the right.
(9) Patients with macular dysfunction were given spectacle lenses with prism and a control group of similar patients were assessed without prism.
(10) Binocular single vision was restored after buckle removal and strabismus surgery in three further patients (20%), one requiring a prism in addition.
(11) The program requires experimental retention data with three quaternary solvent mixtures to calculate the optimum solvent composition using a geometric model of a prism.
(12) Hyperphoria of over 1 prism diopter was extremely rare.
(13) The treatment of eye muscle palsies in principle consists in: 1. medical treatment (local and general), 2. optical treatment (glasses, occlusions, prisms etc.
(14) This paper is a review of the research work that has been carried out over the past few years investigating the ability of the oculomotor system to adapt to prism-induced heterophoria.
(15) In the investigation, the arcade-shaped prisms typical of recent mammals were first seen in material from the Cretaceous period.
(16) The front surface slab-off and bicentric produce base-up prism in the lower section of the lens.
(17) It also diminished the efflux of radioactive choline that had accumulated in the prisms during preincubation with a very low concentration of tacrine, when the prisms were subsequently incubated with 4-aminopyridine.
(18) By appropriate multivariate statistical analyses, about 95 per cent of the variance in results of surgery (expressed as change in deviation from preoperative to the postoperative time in prism diopters per millimeter of surgical correction) could be accounted for.
(19) Twenty heterophoric and 10 heterotropic patients with long standing severe visual symptoms were corrected with prisms for permanent wearing using the full-correction method of H.-J.
(20) This image can be used during surgery to perform a variety of maneuvers that would otherwise require a contact prism, high-minus contact lens, or handheld indirect ophthalmoscope lens.