Find the word definition

Crossword clues for sinus

sinus
Longman Dictionary of Contemporary English
sinus
noun
EXAMPLES FROM CORPUS
▪ A history of purulent nasal discharge may be obtained in headaches resulting from sinus disease.
▪ Baker suggests three possible reasons why human sinus bones should be naturally magnetic.
▪ Carotid sinus hypersensitivity may result in either an intermittent drop in blood pressure or bradycardia, or both.
▪ Carotid sinus massage should be done with great care in patients for whom this diagnosis is suspected.
▪ Frontal sinus present: present in Proconsul, Afropithecus and Dryopithecus, and so it is almost certainly an ancestral hominoid character.
▪ His electrocardiogram showed sinus rhythm with widespread ST-T wave abnormalities.
▪ Some may be due to cerebral venous sinus thrombosis, a known complication of oral contraceptives.
▪ This improved both his sinus problem and his general health.
The Collaborative International Dictionary
Sinus

Sinus \Si"nus\, n.; pl. L. Sinus, E. Sinuses. [L., a bent surface, a curve, the folds or bosom of a garment, etc., a bay. Cf. Sine, n.]

  1. An opening; a hollow; a bending.

  2. A bay of the sea; a recess in the shore.

  3. (Anat. & Zo["o]l.) A cavity; a depression. Specifically:

    1. A cavity in a bone or other part, either closed or with a narrow opening.

    2. 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. (Zo["o]l.) See under Pallial. Sinus venosus. [L., venous dilatation.] (Anat.)

    1. The main part of the cavity of the right auricle of the heart in the higher vertebrates.

    2. In the lower vertebrates, a distinct chamber of the heart formed by the union of the large systematic veins and opening into the auricle.

Douglas Harper's Etymology Dictionary
sinus

"hollow curve or cavity in the body," early 15c., from Medieval Latin sinus, from Latin sinus "bend, fold, curve, a bent surface; a bay, bight, gulf; a fold in land;" also "fold of the toga about the breast," hence "bosom," and figuratively "love, affection, intimacy; interior, inmost part;" of unknown origin.

Wiktionary
sinus

n. 1 (context anatomy English) A pouch or cavity in any organ or tissue, especially the paranasal sinus. 2 (cx botany English) A notch or depression between two lobes or teeth in the margin of an organ. 3 (context pathology English) An abnormal cavity or passage such as a fistula, caused by the destruction of tissue. 4 A bay of the sea; a recess in the shore.

WordNet
sinus
  1. n. an abnormal passage leading from a suppurating cavity to the body surface [syn: fistula]

  2. any of various air-filled cavities especially in the bones of the skull

  3. a wide channel containing blood; does not have the coating of an ordinary blood vessel [syn: venous sinus]

Wikipedia
Sinus

Sinus may refer to:

Sinus (anatomy)

Sinus is a sac or cavity in any organ or tissue, or an abnormal cavity or passage caused by the destruction of tissue. 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.

Sinus (botany)

In botany, a sinus is a space or indentation between two lobes or teeth, usually on a leaf. The term is also used in mycology. For example, one of the defining characteristics of North American species in the Morchella elata clade of morels is the presence of a sinus where the cap attaches to the stipe.

Usage examples of "sinus".

Marcus Aurelius Cotta sailed the Sinus Gallicus from Massilia to Ostia in winds that veered between perfect and nonexistent, a better passage by far than could have been predicted.

I easily recognized the lower edge of a hard metallic substance at a depth of about one inch posteriorly from the orifice of the sinus.

Depilatories, salves, foot powder, styptic pencils, mouthwash, cotton swabs for the ears, deodorants for the armpit, deodorants for the male and female crotch, acne cream medication, sinus remedies, denture cleansers, laxatives, com plasters.

Depilatories, salves, foot powder, styptic pencils, mouthwash, cotton swabs for the ears, deodorants for the armpit, deodorants for the male and female crotch, acne cream medication, sinus remedies, denture cleansers, laxatives, corn plasters.

Algy, would you mind if we took a turn outside and got a little of that Assamese air to my sinuses?

The larvae develop and multiply with great rapidity, and sometimes gain admission into the frontal sinus, causing intense cephalalgia, and even death.

Several sailors had been in the common room, and discussions with them had led Ahmet to take a ship back down the Nile to Heliopolis and then go by camel to the burgeoning port of Clysma on the Sinus Arabicus.

The bone splattered, the ethmoidal sinus ruptured into the olfactory bulb, which meant Les Pruel could no longer smell anything, and the copper-pointed slug did a wing-ding puree of the cerebrum taking the top of his head off like an eggshell surrendering to compressed air.

By the time they were back over the Sinus Medii, that first light had reddened and faded away, and two more had blossomed.

The Titan shuttle flew straight across Mare Tranquilltatis and then over Sinus Medii with the Orion Shuttle behind and above within two hundred metres.

Fresno, her doctors attempted to explain to Foua and Nao Kao that they wanted to perform two more invasive diagnostic tests: a bronchoscopy, to see if the infection had originated in her right lung, and a sinus wash, to see if it had originated in her sinuses.

It was a textbook case of chronic osteomyelitis, with a discharging sinus and probably a large chunk of dead bone inside, trapped within a new layer of living bone that was desperately trying to evict the dead matter.

Even a part of Cilicia Pedia fell to him, around the eastern shore of the Sinus Issicus.

HEAD was splitting with the agony of an infected supraorbital sinus, but she was no whiner and even managed a smile.

We ordered pot stickers and spring rolls, which we dunked in that pale Chinese mustard that cleans out your sinuses.