septum
noun
sep·tum ˈsep-təm 
plural septa ˈsep-tə
: a dividing wall or membrane especially between bodily spaces or masses of soft tissue compare dissepiment
Example Sentences
Recent Examples on the Web While not as serious as ingestion, lithium batteries stuck in an ear or nose can cause significant injuries, such as perforation of the nasal septum or the eardrum, hearing loss, or facial nerve paralysis, according to the report. 
Sandee Lamotte, CNN, 29 Aug. 2022 Harvey also cut into the cardiac septum of a living dog, and showed that no blood spurted out through pores. John J. Ross, WSJ, 24 July 2022 The Don't Worry Darling star accessorized the look with a pair of pink geometric earrings, a subtle septum ring and a pair of pink platform heels. Glenn Garner, PEOPLE.com, 10 July 2022 Housed in bottles that are topped with what could either be a septum ring or a nipple ring, depending on your outlook, Ffrench has created five versatile makeup products, all in reusable packaging. ELLE, 28 June 2022 The actress's black stilettos and septum nose piercing further added an edge to her otherwise classic look. Melody Leibner, Harper's BAZAAR, 10 June 2022 Certain brain structures, such as the cavum septum pellucidum, might not develop until week 20, says Chloe Zera, an obstetrician in Massachusetts. Sarah Zhang, The Atlantic, 20 May 2022 With jet black hair, heavy winged eyeliner, septum piercing, and a collection of bug tattoos, Kalei Renay has heard the comparisons to her music idol Billie Eilish. Melissah Yang, refinery29.com, 7 Mar. 2022 For example, someone with a transverse vaginal septum, meaning they’re born with a wall of tissue that separates parts of the vagina6, might not menstruate or have a hard time inserting a tampon. SELF, 25 Feb. 2022 See More
Sandee Lamotte, CNN, 29 Aug. 2022 Harvey also cut into the cardiac septum of a living dog, and showed that no blood spurted out through pores. John J. Ross, WSJ, 24 July 2022 The Don't Worry Darling star accessorized the look with a pair of pink geometric earrings, a subtle septum ring and a pair of pink platform heels. Glenn Garner, PEOPLE.com, 10 July 2022 Housed in bottles that are topped with what could either be a septum ring or a nipple ring, depending on your outlook, Ffrench has created five versatile makeup products, all in reusable packaging. ELLE, 28 June 2022 The actress's black stilettos and septum nose piercing further added an edge to her otherwise classic look. Melody Leibner, Harper's BAZAAR, 10 June 2022 Certain brain structures, such as the cavum septum pellucidum, might not develop until week 20, says Chloe Zera, an obstetrician in Massachusetts. Sarah Zhang, The Atlantic, 20 May 2022 With jet black hair, heavy winged eyeliner, septum piercing, and a collection of bug tattoos, Kalei Renay has heard the comparisons to her music idol Billie Eilish. Melissah Yang, refinery29.com, 7 Mar. 2022 For example, someone with a transverse vaginal septum, meaning they’re born with a wall of tissue that separates parts of the vagina6, might not menstruate or have a hard time inserting a tampon. SELF, 25 Feb. 2022 See More 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
Medical Definition
septum
noun
sep·tum ˈsep-təm
plural septa -tə
: a dividing wall or membrane especially between bodily spaces or masses of soft tissue: as
a
: nasal septum
b
: crural septum