(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.
Triangular
Definition:
(a.) Having three angles; having the form of a triangle.
(a.) Oblong or elongated, and having three lateral angles; as, a triangular seed, leaf, or stem.
Example Sentences:
(1) 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.
(2) Based on a limited experience we have found that triangular flap ureteroplasty is a worthwhile means of repeat reimplantation of the obstructed ureter and perhaps provides a better alternative than transureteroureterostomy.
(3) Pterygia, triangular sheets of fibrovascular tissue that invade the cornea, have recurrence rates of 30% to 50% with currently available surgical procedures.
(4) Accurate rotational osteotomy is especially difficult in a triangular bone such as the tibia.
(5) Findings at surgery included chondromalacia of the ulnar head (19), tears of the triangular fibrocartilage complex (11), and excessive mobility of the ulnar head (10).
(6) Standardized steps or criteria for designing a triangular flap do not always fit for all types of cleft lip repair.
(7) The characteristic triangular face, stubby nose, peripheral pulmonic stenosis, a history of prolonged neonatal jaundice and evidence of hepatic parenchymal disease were present as well as bilateral small kidneys and delayed puberty.
(8) Each contained four triangular boluses of different widths and of a specific iodine concentration.
(9) Dilated, triangular cisterns are often seen at the points of interconnections between longitudinal and transverse elements.
(10) We have investigated whether a correlation exists between the quality of graft epithelialisation and three types of suture: triangular sutures, continuous and interrupted sutures.
(11) This paper describes the external ear anomalies found in this syndrome: short wide pinnae, often cupped and asymmetrical; distinctive triangular concha; discontinuity between the antihelix and antitragus; and 'snipped-off' portions of the helical folds.
(12) The first type included large multipolar neurons with triangular or polygonal perikarya and typically 3-5 dendrites emerging from the poles of each cell.
(13) Transverse loading tests demonstrated that the triangular fibrocartilage is less stiff in neutral forearm rotation.
(14) Silver-Russell's syndrome is a condition characterized by pre- and postnatal growth retardation, a triangular face, clinodactyly of the 5th finger, café au lait patches and hemihypertrophy.
(15) Analytic, functional and traumatological study of the medial compartment of the wrist, showing the role of cohesion of the triangular ligament and its radialis and ulnaris fibrous expensions.
(16) England had started with some well-executed set piece moves, a triangular formation in midfield initially foxing Australia, but it was the Wallabies’ ability to react in open play that marked them out: Foley’s first try, after Israel Folau, otherwise subdued on the night, ran through Robshaw, came after he noticed Ben Youngs had drifted too wide and cut inside the scrum-half and Joe Launchbury before wrongfooting Brown.
(17) Similar to previous cases in the literature this girl presented with proportionate intrauterine and postnatal growth retardation, normocephaly, triangular face with bulbous nose, long eyelashes, short upper lip, small vermilion border of upper lip, dorsally rotated ears, deep nuchal hair line, hirsutism, and clinodactyly of little fingers.
(18) While the arteries show a long stretched spinle or lancet like form they change over blunt, oval, triangular or rhomboid forms into polygonal cells with spiked border lines at the venules.
(19) The histological examination and microangiogram after combined coaxial exposure of CO2 and Nd: YAG lasers revealed triangular avascular or oligovascular zones in the edematous tissue, in which the surviving vessels were narrowed.
(20) It is concluded that the physical performance of sedentary people, athletes and patients with impaired cardio-pulmonary function can be more precisely qualified in quantitative terms by means of computer assisted rectangular-triangular ergospirometry.