(n.) The act of refracting, or the state of being refracted.
(n.) The change in the direction of ray of light, heat, or the like, when it enters obliquely a medium of a different density from that through which it has previously moved.
(n.) The change in the direction of a ray of light, and, consequently, in the apparent position of a heavenly body from which it emanates, arising from its passage through the earth's atmosphere; -- hence distinguished as atmospheric refraction, or astronomical refraction.
(n.) The correction which is to be deducted from the apparent altitude of a heavenly body on account of atmospheric refraction, in order to obtain the true altitude.
Example Sentences:
(1) In the group of high myopia (over 20 D), the mean correction was 13.4 D. In the group with refraction between 0 and 6 D, 88% of the eyes treated had attained a correction between -1 and +1 D 3 months postoperatively.
(2) The molar refractivity has been shown to be a superior parameter for the description of the activity of sulphonamides than the sum of electronegativities of atoms making up a heterocyclic substituent in the sulphonamide molecule and molecular weight of the substituent.
(3) A new approach is presented to the refractive procedure by adding observation, both surreptitious and direct, as an adjunct, an aid and a supplement to differential diagnosis in a refractive examination and in visual analysis.
(4) Dioptric aniseikonia was calculated between 1 month and 24 months after surgery (with Gruber's and Huber's computer program) on the basis of most recently obtained values (bulb axis length, depth of the anterior chamber, lens thickness, necessary refraction), and compared with subjective measurements taken with the phase difference haploscope.
(5) These versions offer different advantages and are selected according to the particular field of application and the refraction of the surgeon.
(6) The refraction of his mild hyperopic eyes (+0,5 dpt) changed to -5,5 dpt and the intraocular pressure increased to 40 mm Hg in the right and 42 mm Hg in the left eye.
(7) These observations suggest that refractive anomalies such as anisometropia that limit high frequency spatial resolution and binocular integration can present a major obstacle to the postnatal development of binocular vision.
(8) A retrospective study was performed to evaluate the effect of recipient-donor trephine disparity on refractive error and corneal curvature post-suture removal in keratoconus.
(9) Scientists and clinicians concerned with underwater vision have not considered the relationship between chromatic aberration, water color, and the refractive state of the eye.
(10) As the refractive status changes a curve is traced out on the graph.
(11) The change in refractive astigmatism was as high as 1.50DC (diopter cylinder).
(12) There is a problem in this approach if the angle between the direction of tracked beam and the direction of tracking translation is not zero due to refraction or other effects.
(13) We find good agreement between the model calculations and the experimental results indicating that edge birefringence can be attributed to the change in polarization of light that is refracted and reflected by dielectric interfaces.
(14) The corneal sensibility was examined with the aesthesiometer of Draeger in 41 patients after refractive corneal surgery, 31 patients after radial keratotomy, 5 after epikeratophakia, 5 after excimer laser ablation.
(15) Extraordinarily wide angles were observed in all cases and myopia was a common refractive error.
(16) There was no connection between the cholesterol level, refraction or visual acuity.
(17) The refractive changes in 84 children (155 eyes) following horizontal strabismus surgery and in 97 children (181 eyes) without surgical intervention were studied.
(18) Refractive error and the ocular refractive components have heritabilities intermediate between zero and one, as complied from several studies, indicating familial resemblance, but also non-genetic variation.
(19) Approximately 75% of repeat autorefractor measurements were within 0.50 D of the initial readings, and about 75% of measurements were within 1.00 D of the manual refractions.
(20) The refractive index profile in the equatorial plane of bovine lenses from over a wide age range is presented.
Wave
Definition:
(v. t.) See Waive.
(v. i.) To play loosely; to move like a wave, one way and the other; to float; to flutter; to undulate.
(v. i.) To be moved to and fro as a signal.
(v. i.) To fluctuate; to waver; to be in an unsettled state; to vacillate.
(v. t.) To move one way and the other; to brandish.
(v. t.) To raise into inequalities of surface; to give an undulating form a surface to.
(v. t.) To move like a wave, or by floating; to waft.
(v. t.) To call attention to, or give a direction or command to, by a waving motion, as of the hand; to signify by waving; to beckon; to signal; to indicate.
(v. i.) An advancing ridge or swell on the surface of a liquid, as of the sea, resulting from the oscillatory motion of the particles composing it when disturbed by any force their position of rest; an undulation.
(v. i.) A vibration propagated from particle to particle through a body or elastic medium, as in the transmission of sound; an assemblage of vibrating molecules in all phases of a vibration, with no phase repeated; a wave of vibration; an undulation. See Undulation.
(v. i.) Water; a body of water.
(v. i.) Unevenness; inequality of surface.
(v. i.) A waving or undulating motion; a signal made with the hand, a flag, etc.
(v. i.) The undulating line or streak of luster on cloth watered, or calendered, or on damask steel.
(v. i.) Fig.: A swelling or excitement of thought, feeling, or energy; a tide; as, waves of enthusiasm.
(n.) Woe.
Example Sentences:
(1) Arterial compliance of great vessels can be studied through the Doppler evaluation of pulsed wave velocity along the arterial tree.
(2) This suggested that the chemical effects produced by shock waves were either absent or attenuated in the cells, or were inherently less toxic than those of ionizing irradiation.
(3) During the performance of propulsive waves of the oesophagus the implanted vagus nerve caused clonic to tetanic contractions of the sternohyoid muscle, thus proving the oesophagomotor genesis of the reinnervating nerve fibres.
(4) In patients with coronary artery disease, electrocardiographic signs of left atrial enlargement (LAE-negative P wave deflection greater than or equal to 1 mm2 in lead V1) are associated with increased left ventricular end diastolic pressure (LVEDP).
(5) The water is embossed with small waves and it has a chill glassiness which throws light back up at the sky.
(6) The examination of the standard waves' amplitude and latency of the brain stem auditory evoked response (BAEP) was performed in 20 guinea pigs (males and females, weighing 250 to 300 g).
(7) The amplitudes of the a-wave and the 01 decreased in dose-dependent manners, but their changes were less striking than those of the 01 latency.
(8) Enzymatic activity per gram of urinary creatinine was consistently but not significantly higher before extracorporeal shock wave lithotripsy than in control subjects.
(9) It is the route the authorities are now adopting, after the wave of taxpayer bailouts in2008-09.
(10) Paired tolbutamide and glucose infusions using a square wave technique demonstrated that although early phase insulin secretion is dimished in the fetus, this is not due to an absolute deficiency of stored insulin.
(11) It was shown that gradual recovery of spike wave patterns occurred from initial water swallowing to successive dry swalllowing.
(12) Total abolition of the CR ensued when the wave of CSD reached the motor (frontal) cortex and again was independent of the CS modality.
(13) One thousand singleton low-risk pregnancies were cross-sectionally studied at 36-40 weeks gestation with continuous-wave Doppler ultrasonography in order to assess its usefulness as an antepartum monitoring technique for the identification of fetuses at risk of developing an adverse outcome.
(14) Yet in 4 patients in whom no aortic late systolic pressure wave was apparent (group II), nitroprusside did not alter the difference between aortic and radial systolic pressures.
(15) Alternatively, try the Hawaii Fish O nights, every Friday from 26 July until the end of August, featuring a one-hour paddleboard lesson, followed by a fish-and-chip supper looking out over the waves you've just battled (£16.75).
(16) F-wave latency was consistently increased in the affected hands of the patients, compared with results from the unaffected and control hands.
(17) The b-wave in the ERG was lacking and the EOG was flat.
(18) In only six patients (14%) the ventricular tachycardia was initiated by an ectopic ventricular complex interrupting the T wave.
(19) Analysis of official registers reveals the 38 companies in the first wave of the initiative – more than two-thirds of which are based overseas – have collectively had 698 face-to-face meetings with ministers under the current government, prompting accusations of an over-cosy relationship between corporations and ministers.
(20) The following results were obtained: 1) In normal subjects, the changes in ABR waveforms according to the changes of the rise-time, interstimulus interval and frequency of the stimulus were mainly attributed to component wave C. 2) In patients with central disorders, component wave C were initially affected.