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thiopental

/ˌθaɪ.oʊˈpɛnˌtɔl/noun

thiopental is a noun meaning “A barbiturate C₁₁H₁₈N₂O₂S (trademark Pentothal) used in the form of its sodium salt especially as an intravenous anesthetic; and as a supposed truth…” (English Wiktionary, September 2026). It is spelled T-H-I-O-P-E-N-T-A-L and has 4 syllables, and it appears about once in every 11 million words in written English (wordfreq, 2021 data).

What does thiopental mean?

noun

  1. 1

    A barbiturate C₁₁H₁₈N₂O₂S (trademark Pentothal) used in the form of its sodium salt especially as an intravenous anesthetic; and as a supposed truth serum.

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

How do you pronounce thiopental?

  • UK /ˌθʌɪ.əʊˈpɛn.təl/
  • US /ˌθaɪ.oʊˈpɛnˌtɔl/

Thiopental has 4 syllables (counted from the pronunciation).

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

Forms of thiopental

  • thiopentone UK

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

How common is thiopental?

Thiopental appears about once in every 11 million words in written English, the 98,107th 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 thiopental come from?

From thio- + pent(obarbi)tal.

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