Antrum
/ˈæn.tɹəm/ noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A bodily cavity, especially one having bony walls, especially one in the sinuses.
"In forms with a modified outer antral fence, both this and the adjacent distal band of the domiciliar wall may be concave and form the antrum (Figs. 6 J-K; 7 B), and in some forms the antrum apparently is formed by the dolon alone (dolonal antrum)."
- 2 a natural cavity or hollow in a bone wordnet
Antonyms
All antonymsExample
More examples"In forms with a modified outer antral fence, both this and the adjacent distal band of the domiciliar wall may be concave and form the antrum (Figs. 6 J-K; 7 B), and in some forms the antrum apparently is formed by the dolon alone (dolonal antrum)."
Etymology
From Latin antrum, from Ancient Greek ἄντρον (ántron, “cave”). Doublet of antre.