- (n.) A wall separating two cavities; a partition; as, the nasal septum.
- (n.) One of the transverse partitions dividing the body cavity of an annelid.
- (n.) One of the transverse partitions dividing the shell of a mollusk or of a rhizopod, into several chambers. See Illust. under Nautilus.
- (n.) A partition that separates the cells of a fruit.
- (n.) One of the radial calcareous plates of a coral.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). septum. Retrieved September 25, 2026, from http://smartdefine.org/septum/definitions/2060585 |
| Chicago | Webster's. 2011. "septum" http://smartdefine.org/septum/definitions/2060585 (accessed September 25, 2026). |
| Harvard | Webster's 2011, septum, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/septum/definitions/2060585>. |
| MLA | Webster's. "septum" 28 May 2011. Web. 25 September 2026. <http://smartdefine.org/septum/definitions/2060585> |