# thiopental

> English word · Noun · IPA /ˌθʌɪ.əʊˈpɛn.təl/ · frequency rank #98,798

## Definitions
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.

## Etymology
From thio- + pent(obarbi)tal.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/thiopental