Dictionary

castor oil

noun

: a thick oil made from a tropical plant and used in the past as a medicine

Full Definition of CASTOR OIL

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

Origin of CASTOR OIL

probably from its former use as a substitute for castoreum in medicine
First Known Use: 1746
CASTOR OIL Defined for Kids

castor oil

noun cas·tor oil \ˈka-stər-\

Definition of CASTOR OIL for Kids

:  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
Medical Dictionary

castor oil

noun

Medical Definition of CASTOR OIL

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

Browse

2 ENTRIES FOUND:
Next Word in the Dictionary: castor–oil plantPrevious Word in the Dictionary: CastoroidesAll Words Near: castor oil
June 29, 2015
expeditious Hear it
efficient or prompt
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears