Share this entry

ricin Syllabification: ri·cin
Pronunciation: /ˈrīsən/

Definition of ricin in English:


A highly toxic protein obtained from the pressed seeds of the castor-oil plant.
Example sentences
  • There was a previous radiation study of ricin, a dimeric molecule linked by a single disulfide bridge.
  • Signs and symptoms of ricin poisoning depend on whether a person inhales or ingests ricin.
  • Studies have been performed on ricin as a possible anticancer agent.


Late 19th century: from modern Latin Ricinus communis (denoting the castor-oil plant) + -in1.

Words that rhyme with ricin


Definition of ricin in:

Share this entry


What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day coiffeur
Pronunciation: kwäˈfər
a hairdresser