septum
Americannoun
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septa
plural
noun
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biology anatomy a dividing partition between two tissues or cavities
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a dividing partition or membrane between two cavities in a mechanical device
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septa
plural
Other Word Forms
Noun Inflected Forms
Etymology
Origin of septum
1710–20; < Latin sēptum, variant of saeptum enclosure, noun use of neuter of saeptus (past participle of saepīre to fence); akin to saepēs hedge, fence
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:
Key research has recently shown the lateral septum also contains place cells, but these cells strongly respond to rewards.
From Science Daily ● Aug. 12, 2026
The lateral septum inherits much of its primary input from a brain region called the hippocampus.
From Science Daily ● Aug. 12, 2026
Nathan Cohen, a 19-year-old college sophomore, had a septorhinoplasty in late December to fix a deviated septum and slightly alter the tip of his nose.
From The Wall Street Journal ● Feb. 7, 2026
In the week before the implant-removal operation at Guy's Hospital in London, she said her septum "came apart" and would not stop bleeding.
From BBC ● Jan. 21, 2026
Grizzled beard, bad teeth, nose askew, showing septum.
From "Middlesex: A Novel" by Jeffrey Eugenides
The fibers also lack internal walls called septa that often divide such tubes into cells.
From Scientific American ● Sep. 24, 2021
In most phyla of fungi, tiny holes in the septa allow for the rapid flow of nutrients and small molecules from cell to cell along the hypha.
From Textbooks ● Jan. 1, 2015
This cavity is divided into several chambers by longitudinal septa called mesenteries.
From Textbooks ● Jan. 1, 2015
They took cartilage cells from the patients’ nasal septa, grew them on a collagen membrane, shaped them according to the needs of the patient, and implanted the tissue back into the nose.
From Forbes ● Apr. 12, 2014
The king pointed to one and said, "That's your septa there," but Sansa could not even have told that it was a woman.
From "A Game of Thrones" by George R.R. Martin
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
