'Sinuses' definitions:
Definition of 'Sinuses'
From: GCIDE
- 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. [1913 Webster]
- 2. A bay of the sea; a recess in the shore. [1913 Webster]
- 3. (Anat. & Zool.) 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. [1913 Webster]
- 4. (Med.) A narrow, elongated cavity, in which pus is collected; an elongated abscess with only a small orifice. [1913 Webster]
- 5. (Bot.) A depression between adjoining lobes. [1913 Webster]
- Note: A sinus may be rounded, as in the leaf of the white oak, or acute, as in that of the red maple. [1913 Webster]
- Pallial sinus. (Zool.) See under Pallial.
- Sinus venosus. [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. [1913 Webster]
Words containing 'Sinuses'
- Sinus,
- sinusitis,
- Pallial sinus,
- Sinus venosus,
- cavernous sinus,
- coronary sinus,
- ethmoid sinus,
- ethmoidal sinus,
- frontal sinus,
- maxillary sinus,
- nasal sinus,
- paranasal sinus,
- phocoena sinus,
- sigmoid sinus,
- sinus cavernosus,
- sinus coronarius,
- sinus ethmoidales,
- sinus headache,
- sinus paranasales,
- sinus rectus,
- sinus sigmoideus,
- sinus transversus,
- straight sinus,
- tentorial sinus,
- transverse sinus,
- venous sinus,
- sinus venosus sclerae