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tetraethylammonium

/ˌtɛ.tɹəˌɛθ.əl.əˈmoʊ.ni.əm/noun

tetraethylammonium is a noun meaning “A quaternary ammonium ion (C₂H₅)₄N⁺ containing four ethyl groups” (English Wiktionary, September 2026). It is spelled T-E-T-R-A-E-T-H-Y-L-A-M-M-O-N-I-U-M and has 8 syllables, and it appears about once in every 68 million words in written English (wordfreq, 2021 data). The plural of tetraethylammonium is tetraethylammoniums.

What does tetraethylammonium mean?

noun

  1. 1

    A quaternary ammonium ion (C₂H₅)₄N⁺ containing four ethyl groups.

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

How do you pronounce tetraethylammonium?

  • US /ˌtɛ.tɹəˌɛθ.əl.əˈmoʊ.ni.əm/

Tetraethylammonium has 8 syllables (counted from the pronunciation).

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

Forms of tetraethylammonium

  • tetraethylammoniums plural
  • tetrylammonium

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

How common is tetraethylammonium?

Tetraethylammonium appears about once in every 68 million words in written English, the 258,950th 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).

Where does tetraethylammonium come from?

From tetra- (“four”) + ethyl + ammonium.

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