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ricinus oil

American  
[ris-uh-nuhs] / ˈrɪs ə nəs /

noun

Chemistry.

  1. castor oil.

Etymology

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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.