[ oh-lee-oh-rez-uh n ]
/ ˌoʊ li oʊˈrɛz ən /


a mixture of an essential oil and a resin, found in nature.
Pharmacology. an oil holding resin in solution, extracted from a substance, as ginger, by means of alcohol, ether, or acetone.

Origin of oleoresin

First recorded in 1850–55; oleo- + resin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for oleoresin

British Dictionary definitions for oleoresin

/ (ˌəʊlɪəʊˈrɛzɪn) /


a semisolid mixture of a resin and essential oil, obtained from certain plants
pharmacol a liquid preparation of resins and oils, obtained by extraction from plants

Derived forms of oleoresin

oleoresinous, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012