sinus
(noun) any of various air-filled cavities especially in the bones of the skull
fistula, sinus
(noun) an abnormal passage leading from a suppurating cavity to the body surface
Source: WordNet® 3.1
sinus (plural sinuses)
(anatomy) A pouch or cavity in any organ or tissue, especially the paranasal sinus.
(anatomy) A channel for transmitting venous blood.
(botany) A notch or depression between two lobes or teeth in the margin of an organ.
(pathology) An abnormal cavity or passage such as a fistula, caused by the destruction of tissue.
A bay of the sea; a recess in the shore.
• Sunis, nisus
Source: Wiktionary
Si"nus, n.; pl. L. Sinus, E. Sinuses. Etym: [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. & Zoöl.)
Definition: 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.)
Definition: A narrow, elongated cavity, in which pus is collected; an elongated abscess with only a small orifice.
5. (Bot.)
Definition: 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. (Zoöl.) See under Pallial.
– Sinus venosus. Etym: [L., venous dilatation.] (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.
Source: Webster’s Unabridged Dictionary 1913 Edition
15 June 2025
(verb) obtain or seek to obtain by cadging or wheedling; “he is always shnorring cigarettes from his friends”
According to Guinness World Records, the most massive cup of coffee contained 22,739.14 liters and was created by AlcaldĂa Municipal de Chinchiná (Colombia) at Parque de BolĂvar, Chinchiná, Caldas, Colombia, on 15 June 2019. Fifty people worked for more than a month to build this giant cup. The drink prepared was Arabic coffee.
