Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Previous word: richweed
Next word: ricinoleic
Definition of: ricin
(rī′sin, ris′in) noun Chem.
A very toxic protein isolated from the castor bean in the form of a white powder: it agglutinates red blood corpuscles. [<L ricinus castor bean]
Comment about this word, ask questions, or add new information about this topic: