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Sinus   /sˈaɪnəs/   Listen

(pl. L. sinus, E. sinuses)
An abnormal passage leading from a suppurating cavity to the body surface.  Synonym: fistula.
Any of various air-filled cavities especially in the bones of the skull.
A wide channel containing blood; does not have the coating of an ordinary blood vessel.  Synonym: venous sinus.

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"Sinus" Quotes from Famous Books

... both ends, and agree with Adam of Bremen (iv. 16), who also speaks of three islands called Wendila, Morse and Thud. The Cimbri and Charydes are mentioned in the Monumentum Ancyranum as sending embassies to Augustus in A.D. 5. The Promontorium Cimbrorum is spoken of in Pliny, who says that the Sinus Codanus lies between it and Mons Saevo. The latter place is probably to be found in the high-lying land on the N.E. coast of Germany, and the Sinus Codanus must be the S.W. corner of the Baltic, and not the whole sea. Pomponius Mela ...
— Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 2 - "Demijohn" to "Destructor" • Various

... nouns, adjectives, and in other ways, Tacitus produces effects that we look for in poets, but not in historians, as he uses "bosom" or "lap" ("sinus"), in the metaphorical sense of a "hiding place", ("latebrae"), in the History (II. 92), and of "a retreat", ("recessus"), in the Agricola (30). So, instead of his "bosom," or "lap", for "hiding place," or "retreat," we find "tears" for "weeping ...
— Tacitus and Bracciolini - The Annals Forged in the XVth Century • John Wilson Ross

... foramen. Under these circumstances, the operation of trephining was performed on the 7th of July, 1825, but with some difficulty, from the irregular thickness of the bone, and from the saw having to pass through the upper part of the frontal sinus. "The dura mater was unfortunately cut through for one-half the circumference of the circle." The parts were found more vascular than usual, and the under surface had a ridge corresponding to the internal depression, ...
— North American Medical and Surgical Journal, Vol. 2, No. 3, July, 1826 • Various

... projects in the middle, and is notched over the scutellum: of a lively glossy green, the sides broadly margined with yellow. Elytra much depressed, especially on the sides and behind, having a wide but shallow sinus on the sides; surface punctured, the punctures generally running in striae, some of the rows placed in slightly grooved lines: lively glossy green, sides broadly margined with yellow. Legs and underside ...
— Discoveries in Australia, Volume 1. • J Lort Stokes

... acuminate, 1-nerved and with a smooth rounded keel. The third glume is ovate-lanceolate, membranous, 1-nerved, acuminate, male or bisexual with an oblong palea. The fourth glume is cleft to or below the middle into lanceolate acute lobes, with a brownish red awn 1/2 inch or more long at the sinus twisted at the lower portion and straight above, paleate, usually female; palea is linear oblong. The pedicelled spikelet is as long as the sessile, inarticulate on the very thick, short pedicel which is densely or sparsely hairy at the base. The ...
— A Handbook of Some South Indian Grasses • Rai Bahadur K. Ranga Achariyar

... other; and of the third, the dark, ingrained burning, as though it had become a permanent colour. Mr. Corbeck had a big head, massive and full; with shaggy, dark red-brown hair, but bald on the temples. His forehead was a fine one, high and broad; with, to use the terms of physiognomy, the frontal sinus boldly marked. The squareness of it showed "ratiocination"; and the fulness under the eyes "language". He had the short, broad nose that marks energy; the square chin—marked despite a thick, unkempt beard—and massive jaw ...
— The Jewel of Seven Stars • Bram Stoker

... been told that she was very fine. The conversation went no further. The first tenor bent his head and began to count the links of the gold chain which was extended across his waist, smiling and humming random notes to observe the effect on the frontal sinus. From time to time everyone glanced ...
— Dubliners • James Joyce

... place opposite the aperture an eruption is caused. In the main, however, I am inclined to accept Bunsen's theory, especially as it seems to me to require subterranean cavities in which the water must be heated. Whether these are caverns, enlargements of tubes, or sinus channels, appears to me to be of no consequence, except as the interval or period of the geyser might be affected by the form of the reservoir holding ...
— Cave Regions of the Ozarks and Black Hills • Luella Agnes Owen

... with greater swiftness! The muzzle of the Thibetan antelope is quite different from that of most of the deer and antelope tribe, being thick and puffed looking, with a small rudimentary beard; the eyes are set high up in the head; the sub-orbital sinus is wanting; the horns are singularly handsome, jet black, and of the closest grain, averaging about twenty-three or twenty-four inches in length. They are beautifully adapted for knife handles. The females have short ...
— Natural History of the Mammalia of India and Ceylon • Robert A. Sterndale

... packed the corpse in a trunk. Through his marked weakness for women, Eyraud became successively a deserter, a thief, and a murderer. He certainly possessed a few of the characteristics peculiar to degenerates—long, projecting ears, excessive development, amounting to asymmetry, of the left frontal sinus, prognathism, exaggerated brachycephaly, and the span of the arms exceeding the total height, but he had not the general criminal type, his teeth were regular, ...
— Criminal Man - According to the Classification of Cesare Lombroso • Gina Lombroso-Ferrero

... as far as the knee. The cavity of the joint, however, did not seem to be well drained from the opening in the thigh, notwithstanding it had been kept open freely by tents. About three weeks from this last operation, the sinus or pouch within the knee-joint being so imperfectly drained as above indicated, I made an opening directly into the joint at the outer and posterior part, one inch long, through which I could introduce the probe between the ends of the femur and tibia, without ...
— Report on Surgery to the Santa Clara County Medical Society • Joseph Bradford Cox

... were termed Avalitae, and the Bay "Sinus Avaliticus." Some modern travellers have confounded it with Adule or Adulis, the port of Axum, founded by fugitive Egyptian slaves. The latter, however, lies further north: D'Anville places it at Arkiko, Salt at Zula (or Azule), near the ...
— First footsteps in East Africa • Richard F. Burton

Words linked to "Sinus" :   cavity, cavum, canal, passageway, passage, bodily cavity, channel, duct, epithelial duct

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