sinus
noun
Meaning
- nounA 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).
- nounAn irregular venous or lymphatic cavity, reservoir, or dilated vessel.
- nounRelating to or denoting the sinoatrial node of the heart or its function of regulating the heartbeat.
Source: Wiktionary (CC BY-SA 4.0)
Five-letter puzzle facts
- How common
- Common
- #1,323 of 8,600 five-letter words by how often they're used
- Can be a Play Five answer
- As a first guess
- Tests likely letters better than 19% of common five-letter words.
- Vowels: 2 · Different letters: 4 · Repeated letters: s