from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An alkaloid extracted from the seeds of the castor oil plant.
from the GNU version of the Collaborative International Dictionary of English
- n. A bitter white crystalline alkaloid (C8H8N2O2) extracted from the seeds of the castor-oil plant (Ricinus communalis). Called also ricidine. Ingestion may cause vomiting and various other toxic reactions, including liver and kidney damage, convulsions, hypotension, and death.
from The Century Dictionary and Cyclopedia
- n. A crystalline alkaloid, C16H16O4N4, found in castor beans. It crystallizes in prisms which melt at 193° C.
Latin ricinus castor oil plant, and -ine. (Wiktionary)