castor bean

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Related to castor bean: castor bean plant, rosary pea


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
References in periodicals archive ?
The experiment was conducted in a randomized block design with four replications, using a 4 x 2 factorial arrangement, consisting of four plant densities (13,574, 24,512, 36,816, and 40,723 plants [ha.sup.-1]) of castor bean and two crop systems (single crop, and intercrop with Urochloa ruziziensis between the castor bean plant rows).
In view of the above, the objective of this study was to evaluate the genetic parameters of agronomic characters in castor bean plant lineages and to quantify the genetic correlations between them.
Treatments resulted from the combination of four irrigation depths: 50, 75, 100 and 125% crop evapotranspiration, with four spacings of castor bean, corresponding to (1 x 0.5 m), (1 x 1 m), (1 x 1.5 m) and (1 x 2 m), which represented 20,000, 10,000, 6,666 and 5,000 plants per hectare, concomitantly.
Despite being an important cash crop, castor bean has never been realized as commercial crop in Pakistan and is grown on marginal land without giving much care and attention.
Canola, forage radish and black sunflower showed superior digestibility to castor bean. This performance was possibly due to the lower lignification of DM and lower fiber concentration, reducing the rumenfilling effect.
In fact, in Mexico, castor beans are used to make jewellery for tourists.
tested positive for ricin, a deadly toxin derived from castor beans.
Pruning native plants can enhance seed dry weight, therefore leaf area would be increased which leads to more photosynthesis and seed storage materials [1,5] with the manipulation of the castor bean growth through the pruning at different planting densities concluded that the nipping of the apical shoot at the 6th; 10th and 14th node of the main stem reduced the plant height, but it did not affect seed yield.
Azalea, Belladonna, Bird of paradise, Bulbs (hyacinth, narcissus family), Calla filly, Cardinal flower, Castor bean.
Unrefined castor oil, also called the Palma Christi, contains ricin from the castor bean, a counterirritant with marvelous lymphatic-stimulating and pain-relieving properties.