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antrum

American  
[an-truhm] / ˈæn trəm /

noun

Anatomy.
antra plural
  1. a cavity in a body organ, especially a bone.


antrum British  
/ ˈæntrəm /

noun

  1. anatomy a natural cavity, hollow, or sinus, esp in a bone

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Nouns

Etymology

Origin of antrum

1720–30; < Latin < Greek ántron cave

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The wider end of the funnel, the pyloric antrum, connects to the body of the stomach.

From Textbooks Jun. 19, 2013

A thick fluid, called follicular fluid, that has formed between the granulosa cells also begins to collect into one large pool, or antrum.

From Textbooks Jun. 19, 2013

Cells that make up the pyloric antrum secrete mucus and a number of hormones, including the majority of the stimulatory hormone, gastrin.

From Textbooks Jun. 19, 2013

These bony caverns are called the frontal, maxillary or antrum, ethmoid and sphenoid sinuses.

From Time Magazine Archive

Toothache--St Vitus dance, Epilepsy, Fevers, diseases of the eye, nose, antrum, throat, muscles, cholera, all diseases of the skin, face, &c.

From Scientific American magazine, Vol. 2 Issue 1 The advocate of Industry and Journal of Scientific, Mechanical and Other Improvements by Porter, Rufus

But the stolid tree—a bloodwood, all bone, toughened by death, a few ruby crystals in sparse antra all that remained significant of past life—afforded but meagre hospitality to the, soft lead.

From My Tropic Isle by Banfield, E. J. (Edmund James)

How many of them are there on this ship: and how many like Xantra?" antra is the only one of his kind," came the answer.

From Astounding Stories, July, 1931 by Various

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