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septum

American  
[sep-tuhm] / ˈsɛp təm /

noun

Biology.

PLURAL

septa
  1. a dividing wall, membrane, or the like, in a plant or animal structure; dissepiment.


septum British  
/ ˈsɛptəm /

noun

  1. biology anatomy a dividing partition between two tissues or cavities

  2. a dividing partition or membrane between two cavities in a mechanical device

"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

septum Scientific  
/ sĕptəm /

PLURAL

septa
  1. A thin wall or membrane that separates two parts or structures in an organism. Septae separate the chambers of the heart and subdivide the hyphae of some fungi.


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.

In her two-minute video, Jackson explained that the “really loud whistle” from her nose comes from her perforated septum.

From Los Angeles Times

Her dental work also caused a collapsed septum which she said the NHS would not fix as it was deemed a cosmetic procedure.

From BBC

Doctors say the fall caused a problem with her nasal septum - the bone and cartilage which separates the nostrils.

From BBC

A crowd sporting green hair, skull tattoos and gigantic septum piercings blends with puffer vests, sweaters and responsible ear plugs.

From Los Angeles Times

Bolsonaro said he will undergo procedures to correct a hiatus hernia and a deviated septum.

From Reuters