(n.) The regular form which a substance tends to assume in solidifying, through the inherent power of cohesive attraction. It is bounded by plane surfaces, symmetrically arranged, and each species of crystal has fixed axial ratios. See Crystallization.
(n.) The material of quartz, in crystallization transparent or nearly so, and either colorless or slightly tinged with gray, or the like; -- called also rock crystal. Ornamental vessels are made of it. Cf. Smoky quartz, Pebble; also Brazilian pebble, under Brazilian.
(n.) A species of glass, more perfect in its composition and manufacture than common glass, and often cut into ornamental forms. See Flint glass.
(n.) The glass over the dial of a watch case.
(n.) Anything resembling crystal, as clear water, etc.
(1) Such a signal must be due to a small ferromagnetic crystal formed when the nerve is subjected to pressure, such as that due to mechanical injury.
(2) A comprehensive review of the roentgenographic features of calcium pyrophosphate crystal deposition disease (pseudogout) is presented.
(3) CW Nd:YAG light transmitted by fiber optic cable and sapphire crystal was applied transsclerally to the ciliary body of pigmented and albino rabbits.
(4) The crystal structure of the biological stain, "acridine orange," has been determined.
(5) Urinalysis revealed a low pH, increased ketones and bilirubin excretion, dark yellowish change in color, the appearance of "leaflet-shaped" crystals and increased red blood cells and epithelial cells in the urinary sediment, increased water intake, decreased specific gravity and decreased sodium, potassium and chloride in the urine.
(6) Early in the regression process, cholesterol esters are reduced at least partly by hydrolysis to yield cholesterol, some of which may crystallize and inhibit rapid regression.
(7) Here we determine the position of bound ADP diffused into the recA crystal.
(8) The virus material in these crystals had been subjected to treatment with EDTA at pH 8.0 before crystallization at pH 6.5.
(9) Results obtained show that chlorophyll is more active than other inhibitors studied and suggest a higher surface adsorption intensity on the primary sources of the crystal surface.
(10) The "Mg(2+)-Sarkosyl crystals" (M band) technique distinguishes between membrane-bound and free intracellular DNA.
(11) The molecular structure of the hexagonal crystal form of porcine pepsin (EC 3.4.23.1), an aspartic proteinase from the gastric mucosa, has been determined by molecular replacement using the fungal enzyme, penicillopepsin (EC 3.4.23.6), as the search model.
(12) In vitro experiments show that these macromolecules are able to interact with specific faces of different crystals, influencing both nucleation and crystal growth.
(13) 2 Each of the drugs significantly increased leucocyte cyclic AMP content within 3 h of the injection of crystals.
(14) For Kevin Phillips, just like Wilfried Zaha, this might have been his final act as a Crystal Palace player.
(15) In ancillary studies, multiple cycles of direct dissolution of UCB crystals revealed a progressive decrease in aqueous solubility of UCB as fine crystals were removed; this effect was minimal in CHCl3.
(16) Six dogs were instrumented with electromagnetic flow probes and subendocardial ultrasonic crystals.
(17) The crystallization of the lipase was successfully carried out.
(18) The values of the energy level distributions in crystals obtained from the measurements and analysis reported here are compared with those obtained by a different method for the same protein complex in frozen solution.
(19) The crystal structure of proteolytically modified human ACT has been solved at 2.7-A resolution (Baumann et al., 1991).
(20) These observations support our hypothesis that calcium pyrophosphate dihydrate crystal deposition in joints is regulated by the physical chemical gel state of the connective tissue matrix.
Goniometer
Definition:
(n.) An instrument for measuring angles, especially the angles of crystals, or the inclination of planes.
Example Sentences:
(1) Intertester reliability for measurements obtained with a goniometer was .90 for flexion and .86 for extension.
(2) Goniometric PROM measurements for the shoulder appear to be highly reliable when taken by the same physical therapist, regardless of the size of the goniometer used.
(3) The goniometers were set on the right hip joint, knee joint, and ankle joint and the inclinometer was set on the right side of the trunk.
(4) The angles of joints are measured by newly developed goniometers which use the bending loss of rubber optical fibers.
(5) The goniometer was used to record the hip movement patterns of six subjects who cycled in the standing position on a treadmill.
(6) The goniometer is presented first, followed by the development of the equations that enable the distance from the joint center to the pedal spindle to be determined.
(7) By TEM equipped with a goniometer stage, a part of the limiting membrane of B-granules became visible as the stage tilt progressed.
(8) A special verification apparatus facilitated evaluation of goniometer inherent accuracy.
(9) Range-of-motion (ROM) measurements were taken for forward bending (FB), backward bending (BB) (double inclinometers), lateral bending (LB) (tape measure), and rotation (double-arm goniometer).
(10) A simple goniometer for the hip has been described, and in contrast a sophisticated telemeterized system has been devised.
(11) The novel design of ANGULATOR--flexible polycentric goniometer is presented.
(12) The Ortho Ranger does not provide remarkable advantages in measurement compared to the goniometer.
(13) Recordings of the goniometer were made at three locations within the field of view of the cameras.
(14) The results of this check indicate that the attachment point of the goniometer to the rider can be located to within 2.5 mm of the true position.
(15) The most clinically useful were cervical rotation using a protractor, cervical lateral flexion using a goniometer, thoracolumbar flexion as the C7 to iliac crest line distraction, thoracolumbar lateral flexion as the fingertip to floor distance and the modified Schober index.
(16) To determine reliabilities within and between persons measuring cervical active range of motion (AROM) three methods were examined: use of a cervical-range-of-motion (CROM) instrument, use of a universal goniometer (UG), and visual estimation (VE).
(17) The retina of live, anaesthetized pigeons was inspected with an ophthalmoscopic microscope mounted on a goniometer.
(18) Sixty normal children were examined clinically and radiologically, using a special apparatus with a goniometer and a tensometer to standardize stress tests when applying valgus and varus forces to the ankle.
(19) A computer-control procedure was developed to facilitate in situ fatigue experiments within an intermediate voltage transmission electron microscope using a goniometer-type straining holder.
(20) The angles of joints were measured by the newly developed goniometers which use the bending loss of rubber optical fibers.