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Definitions from WordNet
Noun paranasal sinus has 1 sense
- paranasal sinus, sinus paranasales, nasal sinus - any of the paired sinuses in the bones of the face adjacent to the nasal cavity that are lined with mucous membrane that is continuous with lining of the nasal cavities
--1 is a kind of sinus
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Definitions from the Web
Paranasal Sinus
Definition
A paranasal sinus refers to one of the several air-filled spaces located around the nasal cavity in the bones of the face. These sinuses are connected to the nasal passages and act as resonating chambers that help to lighten the skull, produce mucus, and enhance sound quality.
Parts of Speech
Senses
- Anatomy: Any of the paired air-filled cavities in the bones of the face, including the frontal, ethmoid, sphenoid, and maxillary sinuses.
- Medical: A condition characterized by inflammation or infection of the paranasal sinuses.
Usage Examples
Noun (Anatomy):
- The paranasal sinuses are responsible for producing mucus and contributing to the resonance of the voice.
- During a cold, the paranasal sinus can become blocked, causing discomfort and congestion.
- When you experience pressure in your forehead or cheekbones, it may be an indication of a problem in the paranasal sinuses.
Noun (Medical):
- She was diagnosed with sinusitis, which is an inflammation of the paranasal sinuses.
- The doctor prescribed antibiotics to treat the infection in her paranasal sinuses.
- If left untreated, chronic paranasal sinusitis can lead to more severe health issues.
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