pentobarbital

P3E1N1T1O1B3A1R1B3I1T1A1L1
US/ˌpɛn.təˈbɑɹ.bəˌtɔl/

noun

A narcotic and sedative barbiturate drug (trademark Nembutal) formerly used to relieve insomnia.

Similar
UncommonScrabble 19

Meanings

nounpentobarbital (countable and uncountable, plural pentobarbitals)

plural pentobarbitals · alternative UK pentobarbitone

  1. countableuncountablemedicineA narcotic and sedative barbiturate drug (trademark Nembutal) formerly used to relieve insomnia.

    In a pair of emergency legal filings, Ms. Pike’s lawyers said that while two syringes of pentobarbital, the lethal drug, had been administered, Ms. Pike had not lost consciousness. She still had a heartbeat, they said, and was audibly snoring.

    2026 September 30, Emily Cochrane, Ann E. Marimow, “Tennessee Death Row Inmate Christa Pike Still Alive After Attempts to Execute Her, Lawyers Say”, in The New York Times, →ISSN
    1 more example

    And lest anyone think traipsing through the gray and bleach-smelly execution chamber where triple homicide offenders are injected with pentobarbital isn't depressing enough, later they will stage a press conference in front of the gates of Captain Joe Byrd Cemetery, the parched plot of land where executed prisoners whose bodies family members prefer not to claim are buried.

    2016, Christopher Kelly, The Pink Bus, Mapple Shade, New Jersey: Lethe Press, page 146

    Synonyms: equitensin, euthesate, nembutal

Synonyms & antonyms

nounA narcotic and sedative barbiturate drug (trademark Nembutal) formerly used to relieve insomnia.

More synonyms by meaning

nouna barbiturate (trade name Nembutal) used as a sedative and hypnotic and antispasmodic

Similar
pentobarbital sodiumNembutalyellow jacket

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

Cite this entry
APA

pentobarbital. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/pentobarbital

MLA

“pentobarbital.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pentobarbital. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “pentobarbital,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/pentobarbital.

Source: pentobarbital on Wiktionary, CC BY-SA 4.0.