castor oil

castor oil
noun Etymology: probably from its former use as a substitute for castoreum in medicine Date: 1746 a pale viscous fatty oil from castor beans used especially as a cathartic and as a lubricant and plasticizer

New Collegiate Dictionary. 2001.

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  • Castor oil — is a vegetable oil obtained from the castor bean (technically castor seed as the castor plant, Ricinus communis , is not a member of the bean family). Castor oil (CAS number 8001 79 4) is a colorless to very pale yellow liquid with mild or no… …   Wikipedia

  • castor oil — n [U] [Date: 1700 1800; Origin: Probably from castor substance obtained from part of a beaver s body, used in medicines and perfumes (16 19 centuries), from castor beaver (14 19 centuries), from Latin, from Greek kastor; because castor oil was… …   Dictionary of contemporary English

  • Castor oil — Cas tor oil (k[a^]s t[ e]r oil ). A mild cathartic oil, expressed or extracted from the seeds of the {Ricinus communis}, or {Palma Christi}. When fresh the oil is inodorous and insipid. [1913 Webster] {Castor oil plant}. Same as {Palma Christi}.… …   The Collaborative International Dictionary of English

  • castor oil — n. a colorless or yellowish oil from castor beans, used as a cathartic, lubricant, etc …   English World dictionary

  • castor oil — noun uncount a type of oil with a bitter taste, used in medicines in the past …   Usage of the words and phrases in modern English

  • castor oil — ► NOUN ▪ a pale yellow purgative oil obtained from the seeds of an African shrub. ORIGIN Greek kast r beaver : perhaps so named because in medicinal use it succeeded an oily substance secreted by beavers …   English terms dictionary

  • Castor-oil — (engl., »Biberöl«), soviel wie Rizinusöl …   Meyers Großes Konversations-Lexikon

  • castor oil — a colorless to pale yellow, viscid liquid, usually obtained from the castor bean by a pressing process: used as a lubricant, in the manufacture of certain soaps and creams, and in medicine chiefly as a cathartic. Also called ricinus oil. [1740… …   Universalium

  • Castor Oil — Das Rizinusöl, wissenschaftlich auch Ricinusöl (CAS Nr. 08001 79 4), ist ein Naturprodukt, das aus den Samen des afrikanischen Wunderbaums (Ricinus communis), einem Wolfsmilchgewächs, gewonnen wird. Es ist ein Triglycerid und wird in der… …   Deutsch Wikipedia

  • castor oil — n. 1 an oil from the seeds of a plant, Ricinus communis, used as a purgative and lubricant. 2 (in full castor oil plant) this plant. Phrases and idioms: castor oil bean (or castor bean) a seed of the castor oil plant. Etymology: 18th c.: orig.… …   Useful english dictionary

  • castor oil — A fixed oil expressed from the seeds of Ricinus communis (family Euphorbiaceae); a purgative. aromatic c. contains cinnamon oil 3, clove oil 1, vanillin 1, saccharin 0.5, alcohol 30, in c. to make 1000; a cathartic. * * * castor oil n …   Medical dictionary

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