• WordNet 3.6
    • n oleoresin a naturally occurring mixture of a resin and an essential oil; obtained from certain plants
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Webster's Revised Unabridged Dictionary
    • Oleoresin (Med) A liquid or semiliquid preparation extracted (as from capsicum, cubebs, or ginger) by means of ether, and consisting of fixed or volatile oil holding resin in solution.
    • Oleoresin (Chem) A natural mixture of a terebinthinate oil and a resin.
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Century Dictionary and Cyclopedia
    • n oleoresin A natural mixture of an essential oil and a resin, forming the vegetable balsams.
    • n oleoresin In pharmacy, a fixed or volatile oil holding resin and sometimes other active matter in solution, obtained from ether tinctures by evaporation. The oleoresins used in medicine are those of Aspidium or male-fern, capsicum, cubeb, iris, lupulin, ginger, and black pepper; the last is nearly the same as the substance long known as oil of black pepper, a by-product in the manufacture of piperina.
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Chambers's Twentieth Century Dictionary
    • Oleoresin a native compound of an essential oil and a resin: a preparation of a fixed or volatile oil holding resin in solution
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Webster's Revised Unabridged Dictionary
L. oleum, oil + E. resin,
Chambers's Twentieth Century Dictionary
L. oleum, oil.


In news:

All three belong to the same genus of plants and have a sap that oozes oleoresin.
Pepper spray, also known as oleoresin capsicum, is considered a non-lethal agent derived from the same compound that provides the burn in habanero chili peppers .
Armament Systems and Procedures (ASP) is offering yet another color to choose from in its popular Defender family of Oleoresin Capsicum (OC) personal safety devices.