antrum

From Latin antrum, from Ancient Greek ἄντρον (ántron, “cave”). Doublet of antre.

• IPA^(key): /ˈæn.tɹəm/

antrum (plural antrums or antra)

1. (biology) A bodily cavity, especially one having bony walls, especially one in the sinuses.

• antrum of Highmore

• antral

• “antrum”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
• “antrum”, in The Century Dictionary […], New York, N.Y.: The Century Co., 1911, →OCLC.

• Truman, Turman, natrum

From Ancient Greek ἄντρον (ántron, “cave”).

• (Classical) IPA^(key): /ˈan.trum/, [ˈän̪t̪rʊ̃ˑ]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈan.trum/, [ˈän̪t̪rum]

antrum n (genitive antrī); second declension

1. cave, cavern
   • 29 BCE – 19 BCE, Virgil, Aeneid 1.166–168:

     Fronte sub adversā scopulīs pendentibus antrum;
     intus aquae dulcēs vīvōque sedīlia saxō:
     nymphārum domus. [...]

     Under the facing cliff [is] a cave with hanging rocks; inside [it], fresh waters and seats in natural stone: a home of nymphs.

2. cavity, hollow
3. tomb

Second-declension noun (neuter).

• “antrum”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “antrum”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• antrum in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• antrum in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.