pentobarbital
noun
pen·to·bar·bi·tal ˌpen-tə-ˈbär-bə-ˌtȯl 
: a granular barbiturate C11H18N2O3 used especially in the form of its sodium or calcium salt as a sedative, hypnotic, and antispasmodic
Example Sentences
Recent Examples on the Web He was scheduled to die by injection of the sedative pentobarbital at the state prison in Jackson at 7 p.m. Tuesday. 
CBS News, 17 May 2022 In the days before Dixon's death, the method of lethal injection was questioned by his lawyers, who said that a batch of the sedative sodium pentobarbital mixed in February had expired and that its use would violate Arizona's execution rules. Erik Ortiz, NBC News, 11 May 2022 While assisted suicides in Switzerland are conducted with the ingestion of liquid sodium pentobarbital, Exit International is planning to offer an another option. Gabriela Miranda, USA TODAY, 8 Dec. 2021 The procedure involves the ingestion of liquid sodium pentobarbital. Chris Smith, BGR, 7 Dec. 2021 In September, after 14 great years that quickly went bad, Biff took a shot of pentobarbital in a lame leg and passed away. BostonGlobe.com, 27 Oct. 2021 Ernest Johnson died from an injection of pentobarbital at the state prison in Bonne Terre. From Usa Today Network And Wire Reports, USA TODAY, 7 Oct. 2021 Johnson was scheduled to be executed at 6 p.m. and died shortly after from an injection of pentobarbital at the state prison in Bonne Terre. Kyle Morris, Fox News, 6 Oct. 2021 Texas, Georgia and the U.S. government have recently used pentobarbital in executions. Scott Sonner, ajc, 29 June 2021 See More
CBS News, 17 May 2022 In the days before Dixon's death, the method of lethal injection was questioned by his lawyers, who said that a batch of the sedative sodium pentobarbital mixed in February had expired and that its use would violate Arizona's execution rules. Erik Ortiz, NBC News, 11 May 2022 While assisted suicides in Switzerland are conducted with the ingestion of liquid sodium pentobarbital, Exit International is planning to offer an another option. Gabriela Miranda, USA TODAY, 8 Dec. 2021 The procedure involves the ingestion of liquid sodium pentobarbital. Chris Smith, BGR, 7 Dec. 2021 In September, after 14 great years that quickly went bad, Biff took a shot of pentobarbital in a lame leg and passed away. BostonGlobe.com, 27 Oct. 2021 Ernest Johnson died from an injection of pentobarbital at the state prison in Bonne Terre. From Usa Today Network And Wire Reports, USA TODAY, 7 Oct. 2021 Johnson was scheduled to be executed at 6 p.m. and died shortly after from an injection of pentobarbital at the state prison in Bonne Terre. Kyle Morris, Fox News, 6 Oct. 2021 Texas, Georgia and the U.S. government have recently used pentobarbital in executions. Scott Sonner, ajc, 29 June 2021 See More Word History
Etymology
penta- + -o- + barbital
First Known Use
1931, in the meaning defined above
Medical Definition
pentobarbital
noun
pen·to·bar·bi·tal ˌpent-ə-ˈbär-bə-ˌtȯl
: a granular barbiturate used especially in the form of its sodium salt C11H17N2NaO3 or calcium salt (C11H17N2O3)2Ca as a sedative, hypnotic, and antispasmodic