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ENGLISH · A WORD WITH POSSIBILITIES

septum.

A wall separating two cavities; a partition.

6 characters2 syllables approx.English language

Meaning & usage

noun/ˈsɛp.təm/Canada, UK, US/ˈsep.təm/Australia
  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
  2. 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.

  3. A wall separating two cavities; a partition. A partition that separates the cells of a fruit.

  4. A wall separating two cavities; a partition. A partition that separates the cells of a (septated) fungus.

  5. A wall separating two cavities; a partition. One of the radial calcareous plates of a coral.

  6. 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.

  7. A wall separating two cavities; a partition. One of the transverse partitions dividing the body cavity of an annelid.

  8. A wall separating two cavities; a partition. One of the walls dividing two holes in a parallel-hole collimator

  9. Ellipsis of septum ring or septum piercing.

    abbreviation · alt-of · colloquial · ellipsis
    Look, I got a new septum!
Where this word comes from

Borrowed from Latin sēptum (“enclosure, wall, fence”).

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.