One of the mysteries of the English language finally explained.
1A natural chamber or cavity in a bone or other anatomical structure.
space, chamber, hollow, hole, pocket, pouchView synonyms
- ‘It's endoderm ultimately forms the lining of the auditory tube, tympanic cavity and mastoid antrum.’
- ‘Cholesterol granuloma is usually associated with chronic middle ear disease and is common in the mastoid antrum and air cells of the temporal bone.’
- ‘The cumulus projects into a single large fluid-filled space, the antrum, formed from the coalescence of the smaller spaces noted previously.’
- ‘Thus removal of a small cholesteatoma may allow for reconstruction of the outer attic wall or creation of a cavity that extends to or just beyond the mastoid antrum.’
- ‘Then, a fluid-filled space develops, to form the antrum of a tertiary follicle.’
- 1.1 The part of the stomach just inside the pylorus.
- ‘The esophagus, antrum, pylorus, and duodenum were unremarkable.’
- ‘Surgical resection of the antrum and first duodenum was performed.’
- ‘Multiple biopsies were taken from the duodenum, the gastric antrum, and the distal esophagus.’
- ‘The gastroenterologist should map the stomach with adequate sampling of the antrum, corpus, and cardia.’
- ‘The antrum (ie, lower one-third of the stomach) is important for two main reasons.’
Early 19th century: from Latin, from Greek antron ‘cave’.
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