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castor oil
noun
: 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
If your hair is thick or coarse, choose a heavier oil that locks in hydration (such as those that contain coconut oil, castor oil, or olive oil).
—Malia Griggs, Glamour, 25 July 2024
The blend of castor oil, Vitamin E, and organic coconut oil ensures lasting hydration, while the cream creates the most stunning dewy finish.
—Kat Romero, Rolling Stone, 25 Sep. 2024
As this lightweight spray sets your makeup, your skin will enjoy a dose of hydrating glycerin and moisturizing castor oil.
—Jennifer Hussein, Allure, 3 Oct. 2024
Whichever brand happens to be the household favourite — KTC coconut oil, Vatika, Dabur Amla, even castor oil or rosemary oil — hair oiling is a tradition that has been passed down through generations.
—Varsha Patel, refinery29.com, 25 Sep. 2024
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Word History
Etymology
probably from its former use as a substitute for castoreum in medicine
First Known Use
1746, in the meaning defined above
Dictionary Entries Near castor oil
Cite this Entry
“Castor oil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/castor%20oil. Accessed 5 Nov. 2024.
Kids Definition
castor oil
noun
: a pale thick oil obtained from castor beans and used chiefly as a lubricant or a laxative
Medical Definition
castor oil
noun
: a pale viscous fatty oil from castor beans used especially as a cathartic or lubricant
More from Merriam-Webster on castor oil
Britannica.com: Encyclopedia article about castor oil
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