oleo·​res·​in | \ ˌō-lē-ō-ˈre-zᵊn How to pronounce oleoresin (audio) \

Definition of oleoresin

1 : a natural plant product (such as copaiba) containing chiefly essential oil and resin especially : turpentine sense 1b
2 : a preparation consisting essentially of oil holding resin in solution

Keep scrolling for more

Other Words from oleoresin

oleoresinous \ ˌō-​lē-​ō-​ˈre-​zᵊn-​əs How to pronounce oleoresinous (audio) , -​ˈrez-​nəs \ adjective

Examples of oleoresin in a Sentence

Recent Examples on the Web But Special Operation Response Team members attempted to pry their way into the office with a crow bar and sprayed the room without authorization with oleoresin capsicum, also known as pepper spray, according the report. Bart Jansen, USA TODAY, "Bureau of Prison workers injured by flash-bangs, pepper spray during training, watchdog finds," 19 June 2020 Pepper spray, based on a compound called oleoresin capsicum (OC) that can also be used in grenades, behaves in a similar way. Michael Ciaglo, National Geographic, "From tear gas to rubber bullets, here’s what ‘nonlethal’ weapons can do to the body," 5 June 2020 Often grouped with tear gas is Agent OC (oleoresin capsicum), or pepper spray, or its synthetic form known as PAVA spray, according to the American Civil Liberties Union (ACLU). Korin Miller, SELF, "This Is Exactly How Tear Gas Affects Your Body," 26 Nov. 2018 Yes, the beer does include oleoresin capsicum, the food-grade chili oil and primary ingredient in Mace pepper spray. Matt Allyn, Popular Mechanics, "A Pepper Spray Beer That Won't Assault Your Senses," 2 Feb. 2018 Officers ordered inmates to lie on the ground and sprayed oleoresin capsicum, Edge said, commonly known as pepper spray. Laurel Andrews, Anchorage Daily News, "Prisoners riot at Seward maximum-security prison," 19 Jan. 2018 The rest of the time, pepper spray — technically known as oleoresin capsicum, or OC — was used in the general population areas of the prison. Patrick Marley, Milwaukee Journal Sentinel, "Teen inmate at Wisconsin's Lincoln Hills blasted with pepper spray 12 times in 6 months," 1 Sep. 2017 Paul Delekto talks about oleoresin capsicum, commonly known as pepper spray or OC, and its effects on Marines assigned to the security augment force on Marine Corps Air Station Futenma, March 6, 2015. Monty Davis, kansascity.com, "Watch as Denver police recruits are pepper sprayed," 10 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'oleoresin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of oleoresin

circa 1846, in the meaning defined at sense 1

History and Etymology for oleoresin

International Scientific Vocabulary

Keep scrolling for more

Learn More about oleoresin

Time Traveler for oleoresin

Time Traveler

The first known use of oleoresin was circa 1846

See more words from the same year

Statistics for oleoresin

Last Updated

30 Jun 2020

Cite this Entry

“Oleoresin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oleoresin. Accessed 14 Aug. 2020.

Keep scrolling for more

More Definitions for oleoresin


oleo·​res·​in | \ ˌō-lē-ō-ˈrez-ᵊn How to pronounce oleoresin (audio) \

Medical Definition of oleoresin

1 : a natural plant product (as copaiba or turpentine) containing chiefly essential oil and resin
2 : a preparation consisting essentially of oil holding resin in solution

Other Words from oleoresin

oleoresinous \ -​ˈrez-​ᵊn-​əs, -​ˈrez-​nəs How to pronounce oleoresinous (audio) \ adjective

More from Merriam-Webster on oleoresin

Britannica.com: Encyclopedia article about oleoresin

Comments on oleoresin

What made you want to look up oleoresin? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Name That Thing: Animal Edition

  • alt 5a023732e6f75
  • Name that animal:
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!