Definition of pentobarbitone in English:


Line breaks: pento|bar¦bit|one
Pronunciation: /ˌpɛntə(ʊ)ˈbɑːbɪtəʊn
(US pentobarbital)


[mass noun] Medicine
  • A narcotic and sedative barbiturate drug formerly used to relieve insomnia.
    • Alternative name: 5-ethyl-5-(1-methylbutyl)-barbituric acid; often used as the sodium salt ( sodium pentobarbitone, Nembutal)
    More example sentences
    • In this experiment, human volunteers consistently underestimated their performance impairment after acute administrations of triazolam, but not pentobarbital, a barbiturate.
    • One drug in particular, sodium pentobarbital - a barbiturate used to euthanize animals - is of prime concern.
    • To induce a coma, an anesthesiologist typically infuses a patient with increasing doses of the barbiturate pentobarbital while monitoring her brain waves with electrodes.


1930s: from pentane + barbitone (or barbital).

More definitions of pentobarbitone

Definition of pentobarbitone in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day mage
Pronunciation: māj
a magician or learned person