septal

American

[sep-tl] / ˈsɛp tl /

adjective

Biology.

of or relating to a septum.

septal British

/ ˈsɛptəl /

adjective

of or relating to a septum

"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

Other Word Forms

Etymology

Origin of septal

First recorded in 1830–40; sept(um) + -al ¹

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:

septal

While a link between the lateral septum and another region called the hypothalamus is probably responsible for septal rage, the lateral septum links with many other regions with various functions.

From Science Daily ● Aug. 12, 2026

In December, doctors in the town of Khan Younis diagnosed Fatma with an atrial septal defect, a hole in her tiny heart.

From Seattle Times ● Apr. 13, 2022

It may also cause an atrial septal defect, which opens a hole between the left and right upper chambers.

From Fox News ● Apr. 1, 2019

Heath claimed stimulation of the septal region “could make homicidal mania, suicide attempts, depressions or delusions go away—sometime for a long time,” Hooper and Teresi stated.

From Scientific American ● Oct. 15, 2017

On the septal wall is a small depression like the mark of a finger-nail, which corresponds to the anterior part of the fossa ovalis and often forms a valvular communication with the right auricle.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" by Various

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023