- a cavity in a body organ, especially a bone.
Origin of antrum
Examples from the Web for antrum
Historical Examples of antrum
Antrum duplicatum, 1-loculare, superne apertum, pericarpiis osseis intus nidulantibus.The Botanical Magazine Vol. 8
We found that the tumor did extend from the antrum, into which I could bore my finger easily.
It is rarely possible to enter the antrum through its natural ostium.
In my opinion, however, it is always wiser in such cases to open the antrum.
The antrum pyloricum is small and not very distinctly marked.
- anatomy a natural cavity, hollow, or sinus, esp in a bone
Word Origin for antrum
"a cave or cavity," late 14c., medical Latin, from Greek antron "cave."
- A nearly closed cavity or chamber, especially in a bone.
- The pyloric end of the stomach, partially shut off during digestion from the cardiac end by sphincter muscles in the stomach wall.