Definitions of ricin
  1. noun
    a toxic protein extracted from castor beans; used as a chemical reagent; can be used as a bioweapon
    “one milligram of ricin can kill an adult”
    synonyms: ricin toxin
    see moresee less
    type of:
    albumen, albumin
    a simple water-soluble protein found in many animal tissues and liquids
    a poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species
Word Family