sinus
2 synonyms for sinus, grouped by meaning and by how common each one is.
Noun — One of the air-filled cavities in the skull, especially around the nose, that connect to the nasal passages.
Synonyms
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
fistula
venous sinus
How to use sinus
The word patterns that sound natural to a native speaker.
sinus infection
sinus pressure
blocked sinus
Etymology
A learned borrowing from Latin sinus, meaning "a curve, fold, or hollow."
Full origin of sinus →Frequently asked questions
What does “sinus” mean?
The word “sinus” means one of the air-filled cavities in the skull, especially around the nose, that connect to the nasal passages. In plain terms, one of the hollow spaces in your skull around the nose, often mentioned when they get blocked or infected.
How do you pronounce “sinus”?
“Sinus” is pronounced SEYE-nuhs (/ˈsaɪ.nəs/ in IPA).
How do you use “sinus” in a sentence?
Here is “sinus” used in a sentence: “Her sinus was blocked from the cold.”
What part of speech is “sinus”?
“Sinus” is a noun.
Where does the word “sinus” come from?
The word “sinus” comes from Latin. A learned borrowing from Latin sinus, meaning "a curve, fold, or hollow.".
Is “sinus” a common word?
“Sinus” is an uncommon word in modern English.
