Definition of ricin in English:

ricin

noun

Chemistry
  • A highly toxic protein obtained from the pressed seeds of the castor-oil plant.

    • ‘Studies have been performed on ricin as a possible anticancer agent.’
    • ‘Inside the flat, police found traces of ricin, castor oil beans and equipment for crushing the beans.’
    • ‘Because castor beans are readily available, public health officials warn that ricin could be used for terrorism.’
    • ‘Signs and symptoms of ricin poisoning depend on whether a person inhales or ingests ricin.’
    • ‘There was a previous radiation study of ricin, a dimeric molecule linked by a single disulfide bridge.’

Origin

Late 19th century: from modern Latin Ricinus communis (denoting the castor-oil plant) + -in.

Pronunciation:

ricin

/ˈrīsən/