(n.) Usually a curved member made up of separate wedge-shaped solids, with the joints between them disposed in the direction of the radii of the curve; used to support the wall or other weight above an opening. In this sense arches are segmental, round (i. e., semicircular), or pointed.
(n.) A flat arch is a member constructed of stones cut into wedges or other shapes so as to support each other without rising in a curve.
(n.) Any place covered by an arch; an archway; as, to pass into the arch of a bridge.
(n.) Any curvature in the form of an arch; as, the arch of the aorta.
(v. t.) To cover with an arch or arches.
(v. t.) To form or bend into the shape of an arch.
(v. i.) To form into an arch; to curve.
(a.) Chief; eminent; greatest; principal.
(a.) Cunning or sly; sportively mischievous; roguish; as, an arch look, word, lad.
(n.) A chief.
Example Sentences:
(1) Excessive lip protrusion was eliminated, and arch leveled.
(2) The temperature increased from the anterior to the posterior region on both buccal and lingual sides of both arches.
(3) Administration of one of the precursors of noradrenaline l-DOPA not only prevented the decrease in tissue noradrenaline content in myocardium, but restored completely its reserves, exhausted by electrostimulation of the aortic arch.
(4) A forty-four-year-old woman with Takayasu's arteritis and involvement of the aortic arch and its main branches complained of precordial pain on effort.
(5) Koons provoked a bigger stir with the news that he would be showing with gallery owner David Zwirner next year in an apparent defection from Zwirner's arch-rival Larry Gagosian, the world's most powerful art dealer.
(6) Global 'abnormality', hunching (rigid arching of back), hindlimb abduction, forepaw myoclonus, stereotyped lateral head movements, backing, and immobility occurred significantly only in drug-treated rats.
(7) Between March 1986 and September 1988, 38 patients underwent extended aortic resection (aortic valve, ascending aorta, and arch) for acute type-A aortic dissection with aortic valve insufficiency; deep hypothermia and circulatory arrest were used.
(8) Other associated malformations were an interrupted aortic arch and an atrial septal defect.
(9) The sucker, covered with basal lamina, has a constant volume; its layer of muscles resists deformation and supports the stability of the arch.
(10) In the anaesthetized dog the carotid sinuses and aortic arch were isolated from the circulation and separately perfused with blood by a method which enabled the mean pressure, pulse pressure and pulse frequency to be varied independently in each vasosensory area.
(11) The data presented in this paper confirm the need for stimulation of the pudendal reflex arch to achieve physiological conditions.
(12) This article describes the application and efficacy of the lipbumper used in the lower arch.
(13) Adjustment of posterior arch width and dental alignment, using semi-rapid maxillary expansion by means of an upper removable appliance, to co-ordinate the anticipated positions for the arches.
(14) The most commonly associated lesions were ventricular septal defect (50%), hypoplastic aortic arch (45%), patent ductus arteriosus (41%), transposition of great arteries (22.7%) and other intracardiac lesions comprised 30%.
(15) This malformation was demonstrated in alcian-blue- and alizarin-red-stained fetal skeletons by measurements of the distance between the cartilaginous ends of each vertebral arch.
(16) No correlation was found between aortic arch size and the size of the left-to-right shunt in cases of DAP.
(17) After 48 hours in culture, all specimens were examined at 6x magnification for defects in the facial arches, head fold, and neural tube fusion.
(18) Narrow paths weave among moss-covered ornate arches and towers on the 80-acre site, and huge abstract sculptures and staircases lead nowhere, but up to the sky.
(19) Although different dimensions of the face and head and the upper dental arch width were found to be significantly correlated in children with normal occlusion, this relationship is not found to be strong enough in children with different categories of malocclusion.
(20) We suggest that incomplete development of the bones of the dorsal neural arches of the upper sacrum may be a marker of incomplete neurogenesis of the sacral nerves.
Trough
Definition:
(n.) A long, hollow vessel, generally for holding water or other liquid, especially one formed by excavating a log longitudinally on one side; a long tray; also, a wooden channel for conveying water, as to a mill wheel.
(n.) Any channel, receptacle, or depression, of a long and narrow shape; as, trough between two ridges, etc.
Example Sentences:
(1) These observations were confirmed by the killing curves in pooled serum obtained at peak and trough levels.
(2) Plasma aldosterone peaked (p < 0.05) at 22 hours after operation, and argine vasopressin peaked (p < 0.05) at two hours and then declined (p < 0.05) to a trough at 24 hours.
(3) Our observations demonstrated that echographic coaptation of the aortic valve leaflets coincides with the trough of the aortic pressure incisura and the onset of A2.
(4) The goal of the expedition, led by Prof Ken Takai of the Japan Agency for Marine-Earth Science and Technology, was to study the limits of life at deep-sea vents in the Cayman Trough as part of a round-the-world voyage of discovery by the research ship RV Yokosuka .
(5) IDDM in Canterbury, New Zealand, presents in cycles of incidence peaks and troughs, each spanning 2-3 yr.
(6) No IgE circadian rhythm was validated in healthy children while a large amplitude (approximately equal to 30% of the 24 hours mean) circadian rhythm with 2 diurnal peaks and a nocturnal trough was demonstrated (P less than 0.0023) in the asthmatics.
(7) Trough levels of LH, however, are dependent on the frequency of LHRH-induced pulsatile LH secretion.
(8) Appropriate conditions for administering the drug by intravenous drip infusion to neonates and infants at ages of more than 1 week were investigated taking observed blood levels and achieved peak levels and trough levels calculated using the one-compartment open model into account.
(9) Dose limiting toxicities were observed in 9 of 10 patients with 12-h trough piritrexim concentrations greater than 0.5 microM, whereas only 2 of 7 patients with trough concentrations less than 0.5 microM experienced dose limiting toxicities.
(10) Both free and luciferase-bound B show similar negative circular dichroism in the region 330-475 nm with troughs at 375 and 380 nm, respectively.
(11) Whole blood steady-state trough concentrations of cyclosporine were measured by radioimmunoassay (RIA) and TDx assays employing monoclonal antibodies in 82 samples from 39 renal transplant patients.
(12) Regression analysis also showed a strong relationship between the area under the curve (AUC) from time 0 to 11 hours after the initial dose and the trough at steady state (r = 0.86).
(13) algebraic sum of these three cosine functions yielded a circadian waveform with peak-times occurring near 0300 and 1130 hr and a trough-time about 2200 hr.
(14) Group I represented the modified "over-the-top" technique with a deep cancellous bone trough and represented the most isometric tracking.
(15) Circular dichroic spectra of the lipophorins and apolipophorin from 190 to 250 nm showed a single trough at 218 nm and a peak at 194 nm.
(16) • The best ideas are tested by their peaks and troughs.
(17) During the estrous cycle, mitotic activity of the granulosa cells was highest at estrus in follicles less than 601 micron, and at diestrus in follicles greater than 600 micron; while the mitotic trough was at proestrus in all the follicles.
(18) Data analysis revealed a seasonal pattern in the monthly distribution of births, with the peak period observed during April-June, and a trough during November-January.
(19) The issues in CsA monitoring include selection of sample matrix, analytical method, dosing interval and the timing of trough measurements, the temporal relationship between measurements and physiological events such as toxicity, the concurrent presence of multiple other immunosuppressive agents, and the lack of "gold standards" for determining rejection, adequate immunosuppression, and toxicity.
(20) The addition of LTB4 to the microsomal fraction gave a type-I spectral change with a peak at around 390 nm and a trough at 422 nm, indicating a direct interaction of LTB4 with the cytochrome P-450.