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

The medical report listed the cause of death as cardiac arrest, caused by the enlargement of the heart, caused by the atrial septal defect.

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

B-19 soon began obsessively zapping his septal region.

From Scientific American ● Oct. 15, 2017

These cusps are spoken of as septal, marginal and infundibular, from their position.

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

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