phenobarbital

P3H4E1N1O1B3A1R1B3I1T1A1L1
UK/ˌfiː.nə(ʊ)ˈbɑː.bɪt.əl/UK/ˌfɛn.ə(ʊ)ˈbɑː.bɪt.əl/US/ˌfiː.noʊˈbɑɹ.bəˌtɔl/

noun

A narcotic and sedative barbiturate drug used chiefly to treat epilepsy.

Less commonScrabble 22

Meanings

nounphenobarbital (countable and uncountable, plural phenobarbitals)

plural phenobarbitals · alternative UK phenobarbitone

  1. countableuncountablemedicineA narcotic and sedative barbiturate drug used chiefly to treat epilepsy.

    In trans-human state / It's time to evacuate / Waiting for a ride to take them to the Gate / Await the siren call / More phenobarbital / Pour it down the hatch, ingest it all

    2020, “Children of the Next Level”, in Titans of Creation (Thrash Metal), performed by Testament, lyrics inspired by the 1997 mass suicide of members of religious group Heaven's Gate

    Synonyms: purple heart

Synonyms & antonyms

nounA narcotic and sedative barbiturate drug used chiefly to treat epilepsy.

More synonyms by meaning

nouna long-acting barbiturate used as a sedative

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*bʰeh₂-
  2. Proto-Indo-European*bʰh₂nyéti
  3. Proto-Hellenic*pʰáňňō
  4. Ancient Greekφαίνω (phaínō)
  5. Frenchphéno-
  6. Proto-Indo-European*swel-der.?
  7. Ancient Greekῡ̔́λη (hū́lē)
  8. Frenchphényle
  9. Englishphenyl
  10. Englishpheno-
  11. Englishbarbital
  12. Englishphenobarbital

From pheno- + barbital.

Full word history & related roots →

Translations

Finnish fenobarbitaali
  • fenobarbitaalibarbiturate sedative
German Phenobarbital
  • Phenobarbitalbarbiturate sedative
Portuguese fenobarbital
  • fenobarbitalbarbiturate sedative
Spanish fenobarbital
  • fenobarbitalbarbiturate sedative
Turkish fenobarbital
  • fenobarbitalbarbiturate sedative
Cite this entry
APA

phenobarbital. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/phenobarbital

MLA

“phenobarbital.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/phenobarbital. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “phenobarbital,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/phenobarbital.

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