A plant toxin extracted from Castor Beans. This has a toxicity in humans at levels as small as .3 grams. It is considered to be the most deadly plant toxin; twice as deadly as Cobra Venom.
by Snowphish April 8, 2007
Free ricin it' is when you sit in your english class
and play on www.freerice.com to help people
in needy countries get free rice.
i love free rice!
and play on www.freerice.com to help people
in needy countries get free rice.
i love free rice!
by caroline12365 March 3, 2008