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ricinus oil

[ris-uh-nuh s]
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noun Chemistry.
  1. castor oil.

Origin of ricinus oil

1685–95; < New Latin, the genus name; Latin: literally, tick (parasite), allegedly so called in reference to the appearance of the seeds
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
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