septum

noun

sep·​tum ˈsep-təm How to pronounce septum (audio)
plural septa ˈsep-tə How to pronounce septum (audio)
: a dividing wall or membrane especially between bodily spaces or masses of soft tissue compare dissepiment

Examples of septum in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But his voice is still warm and reedy—a deviated septum helps give it that slight nasal edge—and the notes land precisely, if not predictably. Alex Abramovich, New Yorker, 22 Dec. 2025 When the septum is off-center or tilted to one side, it’s known as a deviated septum, which can cause nasal blockage, breathing difficulties, or persistent drainage. Lucy Notarantonio, MSNBC Newsweek, 29 Nov. 2025 Check out the all new PLAY hub with puzzles, games and more! Symptoms of a perforated septum can include dryness and crusting inside the nose, a dip in the bridge of the nose, nosebleeds, runny nose and a whistling sound when someone breathes through their nose, per Cleveland Clinic. Edward Segarra, USA Today, 11 Nov. 2025 The student in question kicked Nagle in the face after throwing shoes at her, causing damage to her nasal cartilage and requiring her to undergo reconstructive surgery for a deviated septum. IndyStar, 3 Sep. 2025 See All Example Sentences for septum

Word History

Etymology

New Latin, from Latin saeptum enclosure, fence, wall, from saepire to fence in, from saepes fence, hedge

First Known Use

1578, in the meaning defined above

Time Traveler
The first known use of septum was in 1578

Browse Nearby Words

Cite this Entry

“Septum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/septum. Accessed 31 Dec. 2025.

Kids Definition

septum

noun
sep·​tum ˈsep-təm How to pronounce septum (audio)
plural septa -tə How to pronounce septum (audio)
: a dividing wall or membrane especially between bodily spaces or masses of soft tissue

Medical Definition

septum

noun
sep·​tum ˈsep-təm How to pronounce septum (audio)
plural septa -tə How to pronounce septum (audio)
: a dividing wall or membrane especially between bodily spaces or masses of soft tissue: as

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