Definition of barbitone in US English:

barbitone

noun

British
  • A long-acting sedative and sleep-inducing drug of the barbiturate type; barbital.

    • ‘Fischer produced 5.5 - diethylbarbituric acid, a hypnotic and sedative known by the trade names Barbital, Veronal, and Dorminal.’
    • ‘Agarose gel electrophoresis was carried out in sodium barbitone buffer, 2 mM EDTA, pH 8.6, using a 1% agarose gel.’
    • ‘But realising the deer had not been shot, he called a vet who confirmed it had been put down by injection and would contain phenol barbitone drugs, which are dangerous.’

Origin

Early 20th century: from barbituric acid + -one.

Pronunciation

barbitone

/ˈbɑrbəˌtoʊn//ˈbärbəˌtōn/