Antrum (Noun)
Meaning
A natural cavity or hollow in a bone.
Classification
Nouns denoting body parts.
Examples
- The antrum of the maxilla is a large air-filled cavity located in the cheekbone.
- The surgeon carefully examined the antrum of the frontal bone to ensure there was no infection.
- The antrum of the ethmoid bone is a complex network of small air cells.
- The CT scan revealed a large tumor growing in the antrum of the sphenoid bone.
- The antrum of the mastoid bone is a small air-filled cavity located behind the ear.