septum

noun

1. A wall separating two cavities; a partition.
2. (abbreviation, alt-of, ellipsis)A wall separating two cavities; a partition.

   “Deviated septum, a shift from the midline that commonly occurs in normal growth, is present in most adults.”

   “Sally got a dagger hung from her septum O'Malley cut his ears off, but wishes that he kept 'em”

3. A wall separating two cavities; a partition.
4. A wall separating two cavities; a partition.
5. A wall separating two cavities; a partition.
6. A wall separating two cavities; a partition.
7. A wall separating two cavities; a partition.
8. A wall separating two cavities; a partition.
9. (abbreviation, alt-of, colloquial, ellipsis)Ellipsis of septum ring or septum piercing.

   “Look, I got a new septum!”