- nounsinus (noun) · sinuses (plural noun)
- anatomyzoology(sinuses)a cavity within a bone or other tissue, especially one in the bones of the face or skull connecting with the nasal cavities.
- an irregular venous or lymphatic cavity, reservoir, or dilated vessel.
- medicinean infected tract leading from a deep-seated infection and discharging pus to the surface.
- botanya rounded notch between two lobes on the margin of a leaf or petal.
- physiologyrelating to or denoting the sinoatrial node of the heart or its function as a pacemaker:"sinus rhythm" · "sinus tachycardia"
Originlate Middle English (in the medical sense): from Latin, literally ‘a recess, bend’.Similar and Opposite Wordsnoun- a cavity within a bone or other tissue, especially one in the bones of the face or skull connecting with the nasal cavities.
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- People also askWhat should you know about sinusitis?
Dr. Ramamurthy Bangalore
M.D., F.C.C.P., F.A.C.P., F.A.A.S.M. (Pulmonologist) · 30 years of exp
Sinusitis is an inflammatory or swollen condition affecting the tissue that lines the sinuses. Sinuses are hollow spaces within the bones that run between the eyes, behind the cheekbones, and in the forehead. They produce mucus, which helps maintain the moisture level in the inside of your nose. This provides additional protection against dust, allergens, and pollutants.3 more answersmicrosoftstart.msn.com Weba. : a narrow elongated tract extending from a focus of suppuration and serving for the discharge of pus. b (1) : a cavity in the substance of a bone of the skull that usually communicates with the nostrils and contains air. (2) : a channel for venous blood. (3) : a …
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A sinus is a sac or cavity in any organ or tissue, or an abnormal cavity or passage. In common usage, "sinus" usually refers to the paranasal sinuses, which are air cavities in the cranial bones, especially those near the nose and connecting to it. Most individuals have four paired cavities located in the cranial bone or skull.
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WebThe name sinus comes from the Latin word sinus, which means a bay, a curve, or a hollow cavity. What are the sinuses? The sinuses include: The maxillary sinuses are located on each...
WebSinus can mean a space in the head connected to the nose, or a node in the heart responsible for rhythm. Learn more about the anatomy, function and problems of sinus with Cambridge Dictionary.
WebAnatomy. any of various cavities, recesses, or passages, as a hollow in a bone, or a reservoir or channel for venous blood. one of the hollow cavities in the skull connecting with the nasal cavities. an expanded area in a canal or tube. Pathology. a narrow passage …
WebSinus can mean any of the spaces inside the head connected to the nose, or a space or passage filled with pus. Learn how to use sinus in a sentence and find translations in different languages.
Websinus, in anatomy, a hollow, cavity, recess, or pocket; a large channel containing blood; a suppurating tract; or a cavity within a bone. Two types of sinus, the blood-filled and the air-filled sinuses, are discussed in this article. Blood-filled sinuses.
WebSinus definition, a curve; bend. See more. How to use . sinus in a sentence. A fair number explicitly ask for an antibiotic, to cover the possibility that it is “bronchitis” or a “sinus infection.”
Sinus Infection (Sinusitis): Causes, Symptoms
WebMar 9, 2023 · Sinusitis is an inflammation of the tissues in your sinuses, usually caused by viruses, bacteria, fungi or allergies. It can cause facial pain, a stuffy or runny nose, fever and other symptoms. Learn about the …
sinus noun - Definition, pictures, pronunciation and usage notes ...
WebDefinition of sinus noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Chronic sinusitis - Symptoms and causes - Mayo Clinic
WebChronic sinusitis causes the spaces inside the nose and head, called sinuses, to become inflamed and swollen. The condition lasts 12 weeks or longer, even with treatment. This common condition keeps mucus from draining. It makes the nose stuffy.
Sinus | definition of sinus by Medical dictionary
WebA sinus is a recess, cavity, or channel in bone or a dilated channel for venous blood. It can also be an abnormal channel or fistula, permitting escape of pus. The web page lists various types of sinuses in the body, such as paranasal, cerebral, coronary, and …
Sine and cosine - Wikipedia
WebTo define the sine and cosine of an acute angle α, start with a right triangle that contains an angle of measure α; in the accompanying figure, angle α in triangle ABC is the angle of interest. The three sides of the triangle are named as follows:
Paranasal sinuses: Anatomy, structure and functions | Kenhub
WebOct 30, 2023 · 1/4. Synonyms: Antrum of Highmore, Maxillary paranasal sinus , show more... The paranasal sinuses are paired and symmetrical, air-filled cavities situated around the nasal cavity. Paranasal sinuses are found in three bones of the neurocranium …
Acute sinusitis - Symptoms and causes - Mayo Clinic
WebAug 29, 2023 · Acute sinusitis causes the spaces inside the nose, known as sinuses, to become inflamed and swollen. Acute sinusitis makes it hard for the sinuses to drain. Mucus builds up. Acute sinusitis can make it hard to breathe through the nose. The area around …
Sinusitis | Johns Hopkins Medicine
WebThe sinuses are cavities, or air-filled pockets, that are near the nose passage. The sinuses make mucus. This fluid cleans the bacteria and other particles out of the air you breathe. What causes sinusitis? A sinus infection can happen after a cold. The cold …
Sinus - Definition, Meaning & Synonyms | Vocabulary.com
WebDefinitions of sinus. noun. an abnormal passage leading from a suppurating cavity to the body surface. synonyms: fistula. see more. noun. any of various air-filled cavities especially in the bones of the skull. see more. noun. a wide channel containing blood; …
Sinus - Wikipedia
WebAnatomy. Other uses. See also. Sinus. Look up sinus or Sinus in Wiktionary, the free dictionary. Sinus may refer to: History. a sac in front of body worn into a toga, in the typical style of wearing it. Anatomy. Sinus (anatomy), a sac or cavity in any organ or tissue.
Sine Definition & Meaning - Merriam-Webster
Web1. : the trigonometric function that for an acute angle is the ratio between the leg opposite the angle when it is considered part of a right triangle and the hypotenuse. 2.
Sinus Rhythm: Normal Sinus Rhythm, Sinus Rhythm Arrhythmia
WebOct 31, 2023 · Summary. Your sinus rhythm is the pattern of electrical pulses from your sinus node, your heart’s pacemaker. It’s not uncommon for sinus rhythm to be too slow or too fast,...
New recommendations on cerebral venous and dural sinus …
WebApr 19, 2024 · Over the last years, new evidence has accumulated on multiple aspects of diagnosis and management of cerebral venous and dural sinus thrombosis (CVT) including identification of new risk factors, studies on interventional treatment as well as treatment …
