colocynth

 
Pronunciation: /ˈkɒləsɪnθ/

noun

  • a tropical Old World climbing plant of the gourd family, which bears a pulpy fruit. Also called bitter apple.
    • Citrullus colocynthis, family Cucurbitaceae
  • the fruit of the colocynth plant.
  • [mass noun] a bitter purgative drug obtained from the colocynth fruit.

Origin:

mid 16th century: via Latin from Greek kolokunthis