What does "thiopental" mean?

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

How do you pronounce "thiopental"?

Pronounced //ˌθʌɪ.əʊˈpɛn.təl//.

Thiopental

Q: What is a synonym for "thiopental"?

Common synonyms include: pentothal, pentothal, soap, sodium pentothal, sodium pentothal, sodium thiopental.

//ˌθʌɪ.əʊˈpɛn.təl// noun

noun ·Rare ·Advanced level

Definitions

Noun

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. uncountable
2
barbiturate that is a hygroscopic powder (trade name Pentothal) that is a strong barbiturate that acts rapidly; induces a relaxed state when injected as a general anesthetic wordnet

Synonyms

All synonyms

pentothal pentothal soap sodium pentothal sodium pentothal sodium thiopental

Etymology

From thio- + pent(obarbi)tal.

Related phrases

sodium thiopental general anaesthetic

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.