sinus
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.
Other meanings
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.
A kind of
- cavity
Kinds of sinus
- frontal sinus
- nasal sinus
Related words
- sinusopathy
- sinusotomy
- venosinus
- urogenital sinus
- dural sinus
- dural venous sinus
- inferior petrosal sinus
- splenic sinus
- inferior sagittal sinus
- pyriform sinus
- sphenoidal sinus
- superior petrosal sinus
Where this comes from
This definition is adapted from “sinus” on Wiktionary, by its contributors; related-word lists use Open English WordNet (CC BY 4.0, based on Princeton WordNet), published under CC BY-SA 4.0. This page is published under the same licence.