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  • WordNet 3.6
    • n sinus a wide channel containing blood; does not have the coating of an ordinary blood vessel
    • n sinus any of various air-filled cavities especially in the bones of the skull
    • n sinus an abnormal passage leading from a suppurating cavity to the body surface
    • ***
Webster's Revised Unabridged Dictionary
    • Sinus A bay of the sea; a recess in the shore.
    • Sinus (Anat. & Zoöl) A cavity in a bone or other part, either closed or with a narrow opening.
    • Sinus A cavity; a depression.
    • Sinus (Bot) A depression between adjoining lobes.
    • Sinus (Anat. & Zoöl) A dilated vessel or canal.
    • Sinus (Med) A narrow, elongated cavity, in which pus is collected; an elongated abscess with only a small orifice.
    • Sinus An opening; a hollow; a bending.
    • ***
Century Dictionary and Cyclopedia
    • n sinus A bend or fold; a curving part of anything; a sinuosity; specifically, a bay of the sea; a gulf.
    • n sinus In anatomy and zoology, a cavity or hollow of bone or other tissue, in the widest sense; a bay, recess, pocket, dilatation, or excavation, generally deeper and less open than a fossa: used with either English or Latin context. Specifically— A hollow or excavation in a bone of the skull; an air-sinus. Such sinuses are larger than the spaces which constitute cancellation, or the spongy tissue of bones (see cancellate ), and most of them are specified by qualifying terms. See phrases below, and cuts under eyeball, craniofacial, and diploë.
    • n sinus In pathology, a narrow passage leading to an abscess or other diseased locality; a fistula.
    • n sinus In botany, the recess or rounded curve between two projecting lobes: as, the sinuses of a repand or sinuate leaf. See cuts under kidney-shaped, pinnatifid, repand, and sinuate.
    • n sinus The bony air-sinuses of the head. See def. 2 .
    • n sinus The rhombocœlia. Also called sinus rhomboidalis.
    • n sinus one of the sinuses of the dura mater (see above), or
    • n sinus a sinus venosus (see above).
    • ***
Chambers's Twentieth Century Dictionary
    • n Sinus sī′nus a bending: a fold: an opening: a bay of the sea: a recess on the shore:
    • n Sinus sī′nus (anat.) a cavity or hollow of bone or other tissue, one of the air-cavities contained in the interior of certain bones: a channel for transmitting venous blood: a narrow opening leading to an abscess, &c
    • ***


Webster's Revised Unabridged Dictionary
L., a bent surface, a curve, the folds or bosom of a garment, etc., a bay. Cf. Sine (n.)
Chambers's Twentieth Century Dictionary
L. sinus, a curve.


In literature:

In this way the sinus is completely destroyed, and from end to end converted into an open wound.
"Diseases of the Horse's Foot" by Harry Caulton Reeks
The white spaces in the bones of the skull are air sinuses.
"The Brain and the Voice in Speech and Song" by F. W. Mott
The Australians have a constellation named Eagle, but he is our Sinus, or Dog-star.
"Custom and Myth" by Andrew Lang
Sinuses have occurred, and the probe leads down to nothing but dead bone.
"A Man's Woman" by Frank Norris
Trailing slowly through the desert toward Aurorae Sinus, they passed near the skeleton bodies.
"Rebels of the Red Planet" by Charles Louis Fontenay
Cut down into this sinus, and hunt the bleeding artery, and tie it?
"Report on Surgery to the Santa Clara County Medical Society" by Joseph Bradford Cox
The sphenoidal sinus near F opens into the upper meatus.
"Surgical Anatomy" by Joseph Maclise
Amputation is also resorted to, but even this is at times futile, as a new sinus may appear upon the stump.
"Essentials of Diseases of the Skin" by Henry Weightman Stelwagon
In spite of all that had been done the sinus persisted, accompanied by intolerable pains.
"Self Mastery Through Conscious Autosuggestion" by Emile Coué
Gills never decurrent, though some species have a broad sinus near the stem.
"The Mushroom, Edible and Otherwise" by M. E. Hard
The mucous membrane of the mouth, nose, sinuses of the head, throat, and lower respiratory passages are also involved.
"Special Report on Diseases of Cattle" by U.S. Department of Agriculture
Do you suppose my sinus trouble is cleared up?
"The Enormous Room" by Horace Leonard Gold
A complex network places these sinuses and the lateral sinuses in communication.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7" by Various
The pepper spray seemed to have cleared out his sinuses and given him back some of his hearing.
"Makers" by Cory Doctorow
Broad, thin leaves, three-lobed by wide sinuses, cover with a thick thatch the rounded head of the tree.
"Trees Worth Knowing" by Julia Ellen Rogers
Ille sui tam blanda sinus patrimonia spernet?
"The Complete Works of Richard Crashaw, Volume II (of 2)" by Richard Crashaw
Argolis, on the east side of the peninsula; a foreland opposite to Attica, with which it forms the Sinus Saronicus.
"A Manual of Ancient History" by A. H. L. (Arnold Hermann Ludwig) Heeren
Sinus irrigator, 109. knife, 47.
"Surgical Instruments in Greek and Roman Times" by John Stewart Milne
But over the sinus rhomboidalis they fall again to from 1/3000th to 1/4000th inch.
"The Works of Francis Maitland Balfour, Volume 1" by Francis Maitland Balfour
Leaf-sinuses rounded at the base.
"Michigan Trees" by Charles Herbert Otis

In news:

Rather than age, this man may have succumbed to a sinus infection caused by a mouthful of cavities and other tooth ailments.
A woman using a neti pot to clear her sinuses.
Actually this is especially pointed at those who use neti pots to clear their sinuses.
And until recently, sufferers yearning to breathe free might have tipped a sinus-cleansing neti pot without thinking twice.
The sinus-clearing devices may just do the trick.
Director of the Johns Hopkins Sinus Center.
"With a sinus infection or even the common cold, fluid will build up in all of your sinuses, " said Dr Janaki Emani, who often hears complaints like the ones from Mason.
Sinus problems are pretty common.
Temperatures have been way above normal for this time of the year and the biggest complaint I have heard from people is about their sinus issues.
Changes in the weather affect people with arthritis, sinusitis and migraines.
Many in Acadiana, you might be one of them, suffer from chronic sinuses.
One recent study found that if the Neti pot is used only sparingly it can help clear the sinuses and avoid a sinus infection.
Here's how to make your home kinder to your sinuses .
Extended Sphenoid Sinus Antrostomy Part IV: Orbital Surgery 18 DCR 19.
Is it an allergy or a sinus infection.

In science:

The slightly perturbed solution in the no-energy-transfer regime can also be approximated by k ≈ 0 and elementary function sinus with small amplitude (b − c) ≈ 0 [see Fig.
Quantum, classical and semiclassical analyses of photon statistics in harmonic generation
Une extension multidimensionnelle de la loi de l’arc sinus.
Two recursive decompositions of Brownian bridge
Yor, Une extension multidimensionnel le de la loi de l’arc sinus, volume 1372 of Lecture Notes in Maths, p. 294, Springer (1989).
Functionals of the Brownian motion, localization and metric graphs
Une extension multidimensionnelle de la loi de l’arc sinus.
Gamma Tilting Calculus for GGC and Dirichlet means with applications to Linnik processes and Occupation Time Laws for Randomly Skewed Bessel Processes and Bridges
F (x) follows by integration of the formal Fourier sinus series for the density f .
On the Laplace transform of some quadratic forms and the exact distribution of the sample variance from a gamma or uniform parent distribution
This is just the Fourier basis given by cosines and sinus.
The random phase property and the Lyapunov spectrum for disordered multi-channel systems
However, the measured distance d varies sinus-like around the circumference (Fig. 10(b)).
A Lightweight Field Cage for a Large TPC Prototype for the ILC
The amplitude of the sinus is 0.3 mm and equal to ρ · ri .
A Lightweight Field Cage for a Large TPC Prototype for the ILC
It is obvious that the An(τn) will attain a value around zero in a linear trend and it will vary in proportion to the Xn(τn) in exponential and sinus cyclic trends.
Analysis of the trends in the index of the Dow Jones Industrial Average (DJIA) of the New York Stock Exchange (NYSE)
Barlow, M., Pitman, J., and Yor, M. (1989) Une extension multidimensionnelle de la loi de l’arc sinus.
The Uniform Law for Sojourn Measures of Random Fields
The coefficient of the sinus is strictly positive (the coefficient of the cosinus has instead at least one zero for η0 ∈ [0, √q ], since it is positive for η0 = 0 and negative for η0 → √q).
Stability of solitons under rapidly oscillating random perturbations of the initial conditions
In the last inequality we estimated the absolute value of the sinus by a piecewise linear function, see the picture below.
Lecture notes on non-asymptotic theory of random matrices
W the sinus of the electroweak mixing angle ΘW . A prove of the SM is to compare these predictions to measurements.
e^+e^- Physics at LEP and a Future Linear Collider
This result was obtained by the Fourier transform method described above using the time step ∆t = 0.01 s. (An artefact of the Fourier method is that the trajectory always ends and starts at the same value due to the periodicity of the sinus and cosinus functions in the Fourier expansion.
Review of Nonlinear Methods and Modelling
Dashed line shows the approximation by the simple sinus.
The study of the X-ray emission from the accreting black holes and neutron stars