castor oil


Definition of castor oil

: a pale viscous fatty oil from castor beans used especially as a cathartic and as a lubricant and plasticizer

Examples of castor oil in a Sentence

Recent Examples on the Web This sea salt spray uses hydrating castor oil to lock down any flyaways and impart necessary hydration back to your strands. ELLE, 23 Apr. 2022 Sandalwood essential oil, jujube fruit extract, lotus flower extract, and castor oil deeply nourish and soften the skin. Grooming Playbook, The Salt Lake Tribune, 12 Apr. 2022 Swatch Group paired two of its brands, Swatch and Omega, for this take on the Omega Speedmaster Moonwatch, only in Bioceramic, a mix of two-thirds ceramic and one-third material derived from castor oil. Carol Besler, Forbes, 10 Apr. 2022 Zinc Ricinoleate, a component of castor oil, works as an odor-absorbing agent. The Salt Lake Tribune, 30 Mar. 2022 This deodorant is formulated with aluminum to reduce perspiration, alongside castor oil to deeply condition your skin. The Salt Lake Tribune, 30 Mar. 2022 Top image: An inscription detailing offerings of money, wine, castor oil, wheat and barley made to the goddess Repit. CNN, 10 Feb. 2022 Many lipsticks and lip moisturizers, including Aquaphor Lip Repair, contain castor oil, which is an allergen for some people. Dr. Keith Roach, oregonlive, 28 Jan. 2022 Her second holy grail is the Leave-in Conditioner, which also contains hyaluronic acid and castor oil, to support healthy, soft curls. Greg Emmanuel, Essence, 28 Jan. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'castor oil.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of castor oil

1746, in the meaning defined above

History and Etymology for castor oil

probably from its former use as a substitute for castoreum in medicine

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Time Traveler for castor oil

Time Traveler

The first known use of castor oil was in 1746

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Dictionary Entries Near castor oil


castor oil

castor-oil plant

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Statistics for castor oil

Last Updated

13 May 2022

Cite this Entry

“Castor oil.” Dictionary, Merriam-Webster, Accessed 23 May. 2022.

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More Definitions for castor oil

castor oil

cas·​tor oil | \ ˈka-stər- \

Kids Definition of castor oil

: a thick yellowish liquid that comes from the seeds ( castor beans ) of a tropical herb and is used as a lubricant and as a strong laxative

castor oil


Medical Definition of castor oil

: a pale viscous fatty oil from castor beans used especially as a cathartic or lubricant

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