Definition of cacodyl in English:

cacodyl

noun

Chemistry
  • 1[mass noun] A malodorous, toxic, spontaneously flammable liquid compound containing arsenic.

    • ‘Berzelius coined the name kakodyl (later changed to cacodyl) for the dimethylarsinyl radical ((CH 3) 2 As) from the Greek kakodes (evil-smelling) and hyle (matter).’
    • ‘She had previously tackled cacodyl, ogygian and zeitgeber.’
    • ‘The investigation and identification of cacodyl by Bunsen in 1848 was to mark the beginning of the era of organometallic chemistry.’
    • ‘There he distilled arsenic with potassium acetate to arrive at a cacodyl (also known as alkarsine or Cadet's liquid), a malodorous compound that the named after the Greek term for ‘stinky’ (kak dl s).’
    1. 1.1[as modifier] Of or denoting the radical —As(CH3)2, derived from cacodyl.

Origin

Mid 19th century: from Greek kakōdēs stinking (from kakos bad) + -yl.

Pronunciation:

cacodyl

/ˈkakə(ʊ)dʌɪl/