Meanings
- biologyA bodily cavity, especially one having bony walls, especially one in the sinuses.
He could feel his eyes filling their sockets. The front of his face, his nose and antrum, were congested. He breathed the sweet night air deeply and focused his senses and his wits.
1953, Ian Fleming, “The Secret Agent”, in Casino Royale, London: Pan Books, published 1955, page 91 more example
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).
1964, GFF - Volume 86, page 343
Origin
- Ancient Greekᾰ̓́ντρον (ắntron)
- Latinantrum
- Englishantrum
From Latin antrum, from Ancient Greek ἄντρον (ántron, “cave”). Doublet of antre.
More words from Latin, Ancient Greek
Full word history & related roots →Translations
Afrikaans antrum
- antrumbodily cavity
Catalan antre
- antrebodily cavity
French antre
- antrebodily cavity
German Höhle
- Höhlebodily cavity
Irish antúr
- antúrbodily cavity
Portuguese antro
- antrobodily cavity
Spanish antro
- antrobodily cavity
Tagalog guwang
- guwangbodily cavity
Rhymes & wordplay
Anagrams
Cite this entry
antrum. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/antrum
“antrum.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/antrum. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “antrum,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/antrum.
Source: antrum on Wiktionary, CC BY-SA 4.0.