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septum

/ˈsɛp.təm/noun

septum is spelled S-E-P-T-U-M: 6 letters and 2 syllables. It appears about once in every 1 million words in written English, the 32,798th most frequent word form (wordfreq, 2021 data). As a noun, septum means “Ellipsis of nasal septum (“the cartilaginous center wall of the nose separating the two nostrils”)” (English Wiktionary, September 2026). The plural of septum is septa or septums.

How many letters and syllables are in septum?

Letters6: S-E-P-T-U-M
Syllables2 (from its pronunciation)
In writingabout once in every 1 million words; the 32,798th most frequent word form
Wrong spellings searchednone measured in search

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How common is septum?

Septum appears about once in every 1 million words in written English, the 32,798th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How do you pronounce septum?

  • US /ˈsɛp.təm/
  • Australia /ˈsep.təm/

Septum has 2 syllables (counted from the pronunciation).

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-septum.wav, Wikimedia Commons (author and licence on each file's page).

Forms of septum

  • septa plural
  • septums plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What does septum mean?

The meanings the English Wiktionary records, quoted as written there (source below).

noun

  1. 1

    Ellipsis of nasal septum (“the cartilaginous center wall of the nose separating the two nostrils”).

  2. 2

    Either of the two walls that separate the atria or ventricles of the heart into left and right chambers.

  3. 3

    A partition that separates the cells of a fruit.

  4. 4

    A partition that separates the cells of a (septated) fungus.

  5. 5

    One of the radial calcareous plates of a coral.

  6. 6

    One of the transverse partitions dividing the shell of a mollusk, or of a rhizopod, into several chambers.

  7. 7

    One of the transverse partitions dividing the body cavity of an annelid.

  8. 8

    One of the walls dividing two holes in a parallel-hole collimator

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Septum in Spanish, French, German and Portuguese

LanguageWords
GermanSeptum ((anatomy) wall separating two cavities), Septe ((mycology) partition separating the cells of a…)
Portuguesesepto ((anatomy) wall separating two cavities)
Spanishtabique, septo, septum ((anatomy) wall separating two cavities), septum (séptum) (ellipsis of septum ring or septum piercing)

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.

Where does septum come from?

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

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

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