sinuses
sinuses is the plural of sinus.
Meaning of sinus
Noun
sinus (plural sinuses)
- A pouch or cavity in a bone or other tissue, especially one in the bones of the face or skull connecting with the nasal cavities (the paranasal sinus).
- An irregular venous or lymphatic cavity, reservoir, or dilated vessel.
- Relating to or denoting the sinoatrial node of the heart or its function of regulating the heartbeat.
- An abnormal cavity or passage such as a fistula, leading from a deep-seated infection and discharging pus to the surface.
- A rounded notch or depression between two lobes or teeth in the margin of a leaf or petal.
- A bay of the sea; a recess in the shore.
Phrases with sinuses
- dural sinuses
- venous sinuses
- carotid sinuses
- ethmoid sinuses
- frontal sinuses
- lateral sinuses
- sigmoid sinuses
- splenic sinuses
- coronary sinuses
- petrosal sinuses
- piriform sinuses
- pyriform sinuses
17 more phrasesFewer phrases
- sagittal sinuses
- sphenoid sinuses
- straight sinuses
- cavernous sinuses
- maxillary sinuses
- paranasal sinuses
- sphenoidal sinuses
- transverse sinuses
- urogenital sinuses
- dural venous sinuses
- confluence of sinuses
- confluences of sinuses
- inferior petrosal sinuses
- inferior sagittal sinuses
- superior petrosal sinuses
- superior sagittal sinuses
- Rokitansky-Aschoff sinuses
Questions about sinuses
- What is sinuses the plural of?
- Sinuses is the plural of sinus.
Words near sinuses in the dictionary
Source and license
Adapted from Wiktionary: sinuses (page history and authors); sinus (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Cite this entry: “sinuses.” Word.ws, https://word.ws/sinuses. Based on Wiktionary, CC BY-SA 4.0.