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Sinus   Listen
noun
Sinus  n.  (pl. L. sinus, E. sinuses)  
1.
An opening; a hollow; a bending.
2.
A bay of the sea; a recess in the shore.
3.
(Anat. & Zool.) A cavity; a depression. Specifically:
(a)
A cavity in a bone or other part, either closed or with a narrow opening.
(b)
A dilated vessel or canal.
4.
(Med.) A narrow, elongated cavity, in which pus is collected; an elongated abscess with only a small orifice.
5.
(Bot.) A depression between adjoining lobes. Note: A sinus may be rounded, as in the leaf of the white oak, or acute, as in that of the red maple.
Pallial sinus. (Zool.) See under Pallial.
Sinus venosus. (Anat.)
(a)
The main part of the cavity of the right auricle of the heart in the higher vertebrates.
(b)
In the lower vertebrates, a distinct chamber of the heart formed by the union of the large systematic veins and opening into the auricle.






Collaborative International Dictionary of English 0.48








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"Sinus" Quotes from Famous Books



... Latos sinus. Sinus strictly signifies "a bending," especially inwards. Hence it is applied to a gulf, or bay, of the sea. And hence, again, by metonymy, to that projecting part of the land, whereby the gulf is formed; and still further to any promontory or peninsula. It is in this latter force it is here ...
— The Germany and the Agricola of Tacitus • Tacitus

... tumuere sinus, innuptaque mater Arcano stupuit compleri viscera partu, Auctorem paritura suum. Mortalia corda Artificem texere poli, latuitque sub uno Pectore, qui totum late complectitur ...
— The Complete Poetical Works of Percy Bysshe Shelley Volume I • Percy Bysshe Shelley

... when that Sinus and Orion come To middle heaven, and when Aurora—she O' the rosy fingers—looks inquiringly Full on Arcturus, straightway gather home The general vintage. And, I charge you, see All, in the sun and open air, outlaid Ten days and nights, and five days in the shade. The sixth day, ...
— The Letters of Elizabeth Barrett Browning (1 of 2) • Frederic G. Kenyon

... the Canidae, Felidae, and Suidae generally, there is no receptacle of this kind, and coitus is slow, since a longer time is required for the peristaltic action of the vas to bring the semen to the urogenital sinus. (R. Disselhorst, Die Accessorischen Geschlechtsdrusen der ...
— Studies in the Psychology of Sex, Volume 5 (of 6) • Havelock Ellis

... 1859. This is the extremely rare account of Columbus' second voyage). Six not very perfect skulls were obtained in 1860, by Col. F. S. Heneken, from a cavern 15 miles south-west from Porto Plata. They are all more or less distorted in a discoidal manner, one by pressure over the frontal sinus, reducing the calvaria to a disk. (J. Barnard Davis, Thesaurus Craniorum, p. 236, London, 1867. Mr. Davis erroneously calls them ...
— The Arawack Language of Guiana in its Linguistic and Ethnological Relations • Daniel G. Brinton

... all the varieties of the dog is according to the development of the frontal sinus and the cerebral cavity, or, in other words, the power of scent, and the degree of intelligence. This classification originated with M.F. Cuvier, and has been adopted by most naturalists. He reckoned three divisions ...
— The Dog - A nineteenth-century dog-lovers' manual, - a combination of the essential and the esoteric. • William Youatt

... Pyrrha and Antissa, about Palus Meotis; and also the city Burys, in the Corinthian Gulf, commonly called Sinus Corinthiacus, have been swallowed up with the sea, and are not at this day to be discerned: by which accident America grew to be unknown, of long time, unto us of the later ages, and was lately discovered again by Americus Vespucius, in the year of our Lord 1497, which some say ...
— Voyages in Search of the North-West Passage • Richard Hakluyt



Words linked to "Sinus" :   sinus coronarius, canal, passage, sigmoid sinus, bodily cavity, coronary sinus, sinus rectus, paranasal sinus, fistula, maxillary sinus, sinus venosus sclerae, straight sinus, sinus paranasales, cavity, sinus transversus, ethmoidal sinus, epithelial duct, Phocoena sinus, frontal sinus, ethmoid sinus, venous sinus, cavum, channel, sinus headache, sinus cavernosus, duct, tentorial sinus, sinus ethmoidales, transverse sinus, cavernous sinus



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