castor bean

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A genus of plants (family Euphorbiaceae) with one species, Ricinus communis, the castor oil plant, the source of castor oil; the leaves are said to be a galactagogue.
Synonym(s): castor bean
Farlex Partner Medical Dictionary © Farlex 2012

castor bean

1. The castor-oil plant.
2. The poisonous seed of the castor-oil plant, from which castor oil is obtained.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

castor bean

Herbal medicine
The kernel of the seeds of Ricinus communis, which contain the highly toxic ricin and ricinine.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

cas·tor bean

(kast'ŏr bēn)
Herbal agent made from the seed of Ricinus communis; widely used as a cathartic laxative; overdosage can produce gastrointestinal problems.
Synonym(s): Mexico seed, pei-ma.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012