Definition of Physeptone in English:

Physeptone

noun

  • trademark for methadone
    • ‘Nothing works except gear or Phy (Physeptone, a brand of methadone, which is a heroin substitute).’
    • ‘She has to take 30 tablets of Physeptone every day just to have some quality of life.’

Origin

1940s: of unknown origin.

Pronunciation:

Physeptone

/fʌɪˈsɛptəʊn/