pentobarbital

noun

pen·​to·​bar·​bi·​tal ˌpen-tə-ˈbär-bə-ˌtȯl How to pronounce pentobarbital (audio)
: a granular barbiturate C11H18N2O3 used especially in the form of its sodium or calcium salt as a sedative, hypnotic, and antispasmodic

Examples of pentobarbital in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Autopsies conducted on two inmates executed since South Carolina switched its lethal injection method to massive doses of pentobarbital revealed significant fluid buildup in their lungs. Tommy Tuberville, Newsweek, 6 Mar. 2025 The autopsy report has been released for only one of the executions: Richard Moore, who prison officials say was given two large doses of the sedative pentobarbital 11 minutes apart on Nov. 1. Freddie Owens, the first inmate killed with the new protocols, refused an autopsy for religious reasons. CBS News, 4 Mar. 2025 At the time, the state was out of pentobarbital, the drug used in lethal injections. Joseph Wilkinson, New York Daily News, 4 Mar. 2025 King argued that the state must disclose more information about the protocol and the quality of its pentobarbital on hand in order for Sigmon to have made a fair choice. Erik Ortiz, NBC News, 2 Mar. 2025 See All Example Sentences for pentobarbital

Word History

Etymology

penta- + -o- + barbital

First Known Use

1931, in the meaning defined above

Time Traveler
The first known use of pentobarbital was in 1931

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Cite this Entry

“Pentobarbital.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pentobarbital. Accessed 14 Mar. 2025.

Medical Definition

pentobarbital

noun
pen·​to·​bar·​bi·​tal ˌpent-ə-ˈbär-bə-ˌtȯl How to pronounce pentobarbital (audio)
: a granular barbiturate used especially in the form of its sodium salt C11H17N2NaO3 or calcium salt (C11H17N2O3)2Ca as a sedative, hypnotic, and antispasmodic

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