(n.) The half of a circle; the part of a circle bounded by its diameter and half of its circumference.
(n.) A semicircumference.
(n.) A body in the form of half of a circle, or half of a circumference.
(n.) An instrument for measuring angles.
Example Sentences:
(1) The form of the hard palate is similar to a semicircle in the frontal cut.
(2) The loudspeakers, 15 deg apart, were arranged in a semicircle (0-270-180 deg, azimuth).
(3) In the other pattern, the inducing semicircles were shifted in phase along their diameter and their endpoints were aligned along the contour.
(4) Within the whole target volume yD remains nearly constant when irradiated with all 60 beams, whereas considerable changes were found for irradiations with 31 beams coming from a semicircle.
(5) In targeting Hindus, Sikhs, Jews and those of Tamil ethnicity, the Tories are once again courting a suburban semicircle of boroughs in north London that traditionally are more likely to vote Conservative.
(6) Reducing the salience of the illusory contour, whether by scrambling the contour, or by decreasing the number or the contrast of inducing semicircles, systematically increased discrimination thresholds.
(7) Osteoperiosteal corticocancellous grafts are harvested from the iliac wing, then bent into a semicircle with the periosteum on the inside and inserted between the resected vertebral pedicles where they act as a base for further grafting.
(8) A useful method of treatment in these cases is the marginal, lamellar keratoplasty, which, according to the type of involvement, can take the shape of a sector, ring, horseshoe, or semicircle.
(9) There was a characteristic pattern of activity consisting of small, medium-size, or large distinct granules often distributed in a semicircle in the cytoplasm, but sparing the nucleus of hairy cells.
(10) We report a case of relatively diffuse nontransmural infarction demonstrated by a semicircle of 99mTc-PYP activity which significantly overlapped 201Tl uptake on the SPECT study.
(11) The algorithm developed here is to reduce interactively a multidimensional symptom space to sectorial regions representing each disease in a semicircle using the modified constellation graph method.
(12) This method enables us to classify patients using the angle in the semicircle as a single classifying parameter with an accuracy of about 90%, that is, with little overlapping between disease sectors.
(13) Its transitional stage is a curved semicircle having a form of a distended spiral coil; that reflects an uneven growth of the organ in the human embryogenesis.
(14) The cupboard door came open, Martensen was dragged out and beaten by a dozen officers standing in a semicircle around him.
(15) They are situated in the subserous tela along the anterior and posterior semicircles of the organ.
(16) The CGL of the buffalo was convex, swung in a semicircle around the thalamus and was covered by the fibres of the optic tract.
(17) The hypothesis is presented that a sheet of internal scar is primarily responsible for raising the skin inside the semicircle.
(18) The tube-camera-unit rotates in a semicircle in 5 to 6 seconds around a skull placed in the isocentrum.
(19) The posterior semicircle of the sphincter is located higher than the anterior one.
(20) The anterior capsular tear has a smooth circular edge at the intersection of the two semicircles of the capsulorhexis, while a triangular flap directed towards the center of the pupil is often formed at 12 o'clock.
Semicircular
Definition:
(a.) Having the form of half of a circle.
Example Sentences:
(1) In addition to the aqueduct other associated inner ear anomalies have been identified in 60% of this population including: enlarged vestibule (14); enlarged vestibule and lateral semicircular canal (7); enlarged vestibule and hypoplastic cochlea (4); and hypoplastic cochlea (4).
(2) It is concluded that the massive destruction of the normal anatomy in the lateral semicircular canal may be the morphological basis of a functional endolymphatic fistula for drainage of the endolymphatic hydrops.
(3) These findings imply that otolithic afferents, unlike those from the semicircular canals, do not interact with neural centres mediating visual localization.
(4) In all patients, the nystagmus elicited during the paroxysm was compatible with excitation of the posterior semicircular canal.
(5) In a series with sixteen normal adult volunteers, 22 to 45 years in age, 100% of the cochleae, vestibules, and lateral and posterior semicircular canals were clearly demonstrated in T2 weighted images.
(6) The chief characteristics of stage 18 (approximately 44 postovulatory days) are rapidly growing basal nuclei; appearance of the extraventricular bulge of the cerebellum (flocculus), of the superior cerebellar peduncle, and of follicles in the epiphysis cerebri; and the presence of vomeronasal organ and ganglion, of the bucconasal membrane, and of isolated semicircular ducts.
(7) Ach, cholinomimetics and cholinergic antagonists were therefore applied to frog isolated whole labyrinths and isolated semicircular canals.
(8) The electrical activity of single trochlear motoneurons (TMns) and axons of second order vestibular neurons presumably terminating on these motoneurons were studied during natural stimulation of semicircular canals and otolith organs in cats anesthetized with Ketamine.
(9) Warming or cooling stimuli to the canal side changed the activity of the semicircular nerve.
(10) In an attempt to destroy selectively the affected peripheral vestibular labyrinth in patients with intractable vertigo as a result of Meniere's disease, a known quantity of streptomycin was introduced within the bony labyrinth following fenestration of the horizontal semicircular canal.
(11) The decrease of the postrotatory reactions is not due to a lesion of the ampullary nerves of the horizontal semicircular canals and it may be explained by the existence of functional connections between the VAC and the horizontal canal.
(12) (4) The lateral semicircular canal was completely obliterated with destruction of the membranous canal.
(13) Separate extracellular injections were made of the anterior branch, the posterior branch, the ampullary nerve of each of the three semicircular canals, and the branch to the saccule.
(14) Intracellular records with glass microelectrodes filled with horseradish peroxidase (HRP) were taken from primary afferents of the horizontal semicircular canal in the lizard, Calotes versicolor.
(15) The other in Montreal, Canada, employed De Vega's semicircular annuloplasty in 17 cases.
(16) Our patient had anomalous configuration of lateral semicircular canal and an abnormally high location of the utricle and saccule.
(17) Although this series is not comprehensive enough, it seems to indicate that interruption of the lateral semicircular duct has a possibility of diminishing labyrinthine hydrops, as in cases of Ménière's disease, without hearing disturbance, provided that complications do not develop.
(18) Semicircular annuloplasty was applied to 16 patients with congenital heart diseases with systemic atrioventricular valve regurgitation (congenital MR 4, ECD 4, Fontan 7, BWG 1).
(19) The specimens revealed: absence of normal bile ducts; presence of thin-walled tubular or saccular cholangiectases with semicircular and annular fibrous crests, without evidence of superinfection; cholangiectases with secondary acute or chronic-cellular cholangitis, with or without cholangitic abscesses; fibrous cholangitis without ductal dilatation; transformation of bile ducts into fibrous cords which were either solid or contained remnants of bile duct epithelium, and complete loss of bile ducts.
(20) When simulating normally functioning semicircular canals, the model produced no nystagmus.