Definition of Antrum

1. Noun. A natural cavity or hollow in a bone.

Generic synonyms: Bodily Cavity, Cavity, Cavum

Definition of Antrum

1. n. A cavern or cavity, esp. an anatomical cavity or sinus

Definition of Antrum

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

¹ Source:

Definition of Antrum

1. a cavity in a bone [n -TRA or -TRUMS]

Medical Definition of Antrum

1. A general term for cavity or chamber which may have specific meaning in reference certain organs or sites in the body. The antrum of the stomach (gastric antrum) is a portion before the outlet which is lined by mucosa which does not produce acid. The paranasal sinuses can be referred to as the frontal antrum, ethmoid antrum, and maxillary antrum. (12 Dec 1998)

Antrum Pictures

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Lexicographical Neighbors of Antrum

antrum (current term)
antrum auris
antrum cardiacum
antrum mastoideum
antrum of Highmore
antrum pyloricum

Literary usage of Antrum

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Laryngoscope by American Laryngological, Rhinological, and Otological Society (1899)
"Report of Cases of Chronic Empyema of the antrum of High- more Operated Upon by the ... The anterior wall of the antrum was opened in the canine fossa, ..."

2. The American Medical Intelligencer by Robley Dunglison (1840)
"That the disease of the teeth does, most often, communicate inflammation and disease to the membrane of the antrum I admit ; and I concede the great cause ..."

3. The Anatomy and Physiology of the Human Body by John Bell, Charles Bell (1829)
"We have gone round the antrum on all its sides, in describing these processes of the bone: the palate-plate makes the floor of the antrum; ..."

4. The American Journal of the Medical Sciences by Southern Society for Clinical Investigation (U.S.) (1902)
"It has been known for a considerable time that the antrum gives a good route to the sphenoid. In 1897, at the International Congress of Medicine at Moscow, ..."

5. Modern surgery, general and operative by John Chalmers Da Costa (1910)
"Inflammation and Abscess of the antrum of Highmore (of the Maxillary antrum). ... The opening of the maxillary antrum into nasal channel is at ..."

6. Manual of Operative Surgery by John Fairbairn Binnie (1916)
"Turn the trocar so that its point touches the outer wall of the nose (inner wall of the antrum) at right angles. Push, with steady force, outwards so as to ..."

7. Journal of Pathology and Bacteriology by Pathological Society of Great Britain and Ireland (1901)
"The cheek has been divided and turned up, and the facial wall of the antrum has been removed so as to expose the cavity. Projecting upwards from the floor ..."

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