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n. A depression or cavity formed by a bending or curving.

n. Anatomy A dilated channel or receptacle containing chiefly venous blood.

n. Anatomy Any of various air-filled cavities in the bones of the skull, especially one communicating with the nostrils.

n. Pathology A fistula leading from a pus-filled cavity.

n. Botany A recess or indentation between lobes of a leaf or corolla.

n. A pouch or cavity in any organ or tissue, especially the paranasal sinus.

n. An abnormal cavity or passage such as a fistula, caused by the destruction of tissue.

n. An opening; a hollow; a bending.

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

n. A cavity; a depression.

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

n. A dilated vessel or canal.

n. A narrow, elongated cavity, in which pus is collected; an elongated abscess with only a small orifice.

n. A depression between adjoining lobes.

n. A bend or fold; a curving part of anything; a sinuosity; specifically, a bay of the sea; a gulf.

n. 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.

n. In pathology, a narrow passage leading to an abscess or other diseased locality; a fistula.

n. 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. The bony air-sinuses of the head. See def. 2 .

n. The rhombocœlia. Also called sinus rhomboidalis.

n. one of the sinuses of the dura mater (see above), or

n. a sinus venosus (see above).

n. an abnormal passage leading from a suppurating cavity to the body surface

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

n. a wide channel containing blood; does not have the coating of an ordinary blood vessel

"KNOX: That, he says, will be the next big advance in sinus treatment."

passageway    passage   

common sinus of the vestibule    accessory sinus    petrous sinus    portal sinus    prostatic sinus    sinus rhomboidalis    sinus of the portal vein    sinus of valsalva    sphenoidal sinuses    aortic sinus   

paranasal sinus    sinusitis    maxillary sinus    frontal sinus    sphenoid sinus    ethmoid sinus   

opening    hollow    bending    cavity    depression   

Aquinas    Highness    Linus    dryness    highness    minus    shyness    slyness    wryness   

artery    sinusitis    allergy    windpipe    ventricular    airway    respiratory    pelvic    coronary    genital