Septum
//ˈsep.təm// noun, slang
noun, slang ·Moderate ·High school level
Definitions
Noun
- 1 A wall separating two cavities; a partition.; Ellipsis of nasal septum (“the cartilaginous center wall of the nose separating the two nostrils”). abbreviation, alt-of, ellipsis
"Deviated septum, a shift from the midline that commonly occurs in normal growth, is present in most adults."
- 2 (anatomy) a dividing partition between two tissues or cavities wordnet
- 3 A wall separating two cavities; a partition.; Either of the two walls that separate the atria or ventricles of the heart into left and right chambers.
- 4 a partition or wall especially in an ovary wordnet
- 5 A wall separating two cavities; a partition.; A partition that separates the cells of a fruit.
Show 6 more definitions
- 6 A wall separating two cavities; a partition.; A partition that separates the cells of a (septated) fungus.
- 7 A wall separating two cavities; a partition.; One of the radial calcareous plates of a coral.
- 8 A wall separating two cavities; a partition.; One of the transverse partitions dividing the shell of a mollusk, or of a rhizopod, into several chambers.
- 9 A wall separating two cavities; a partition.; One of the transverse partitions dividing the body cavity of an annelid.
- 10 A wall separating two cavities; a partition.; One of the walls dividing two holes in a parallel-hole collimator
- 11 Ellipsis of septum ring or septum piercing. abbreviation, alt-of, colloquial, ellipsis
"Look, I got a new septum!"
Example
More examples"That the entire descending aorta in man results from the fusion of two vessels is shown by the rare cases in which the aorta is divided throughout its entire length by a septum."
Etymology
Borrowed from Latin sēptum (“enclosure, wall, fence”).
Related phrases
More for "septum"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.