proprietary

1 of 2

noun

pro·​pri·​e·​tary prə-ˈprī-ə-ˌter-ē 

plural proprietaries

1

: one that possesses, owns, or holds exclusive right to something

specifically : proprietor sense 1

2

: something that is used, produced, or marketed under exclusive legal right of the inventor or maker

specifically : a drug (such as a patent medicine) that is protected by secrecy, patent, or copyright against free competition as to name, product, composition, or process of manufacture

3

: a business secretly owned by and run as a cover for an intelligence organization

proprietary

2 of 2

adjective

pro·​pri·​e·​tary prə-ˈprī-ə-ˌter-ē 

1

: of, relating to, or characteristic of an owner or title holder

proprietary rights

2

: used, made, or marketed by one having the exclusive legal right

a proprietary process

proprietary software

3

: privately owned and managed and run as a profit-making organization

a proprietary clinic

Did you know?

A proprietary process is a manufacturing process that others are forbidden to use, and a proprietary trademark is a name that only the owner can use. Legal rights of this kind are ensured by copyrights and patents. After a certain period of time, inventions and processes lose their legal protection, cease to be proprietary, and enter the "public domain", meaning that everyone can use them freely. Baseball fans often take a proprietary attitude toward their favorite team—that is, they behave more or less as if they own it, even though the only thing they may own is the right to yell from a bleacher seat till the end of a game.

Examples of proprietary in a Sentence

Adjective

By allowing less favorable results to remain buried, the agency puts proprietary interests ahead of the public interest, and doctors and the public come to believe prescription drugs are better than they are. That should stop. —Marcia Angell, New York Review of Books, 8 June 2006

It is a proprietary faith: no one better tell me what to do with my own land. —Lance Morrow, Time, 11 Sept. 2000

Many veterans have adopted a proprietary attitude toward the war, and they can get a bit belligerent about it. —Nicholas Proffitt, New York Times Book Review, 21 May 1989

The investors have a proprietary interest in the land.

The computer comes with the manufacturer's proprietary software.

“Merriam-Webster” is a proprietary name.

The journalist tried to get access to proprietary information.

Recent Examples on the Web

Adjective

Today, some major game studios, such as Activision Blizzard, which makes Call of Duty, still use their own proprietary engines. —Anna Wiener, The New Yorker, 15 Apr. 2024

Maple Hill has removed the lactose through a proprietary soft-filtering process, so that each serving still contains the beneficial fats, calcium, and potassium normally in milk, but none of the sugar, resulting in a thick, creamy beverage. —Jessie Shafer, Better Homes & Gardens, 12 Apr. 2024

Each 50-gram bar is made with real chocolate and contains the company’s proprietary blend that mixes different mushrooms cherished for their potential health benefits. —Sponsored Content, The Mercury News, 12 Apr. 2024

The formula also provides extra protection with the brand’s proprietary Cell-Ox Shield technology, which pairs UV filters with antioxidants that serve as a secondary line of defense against free radical damage. —Deanna Pai, Vogue, 3 Apr. 2024

With its proprietary blend of natural herbs, this supplement is specially formulated to help improve libido, stamina, and energy levels. —Amber Smith, Discover Magazine, 3 Apr. 2024

The amendment gave contractors the right to provide access to confidential and proprietary data only at their places of business. O’Brien argued that carveout violated best practices for audits. —Joe Rubino, The Denver Post, 3 Apr. 2024

The proprietary blend of EVA, the 10 mm heel raise, and the arch support ensures an easy transfer from heel to toe, thereby allowing foot and leg muscles to recover. —Rachel Cormack, Robb Report, 9 Apr. 2024

Their proprietary in-house extraction method creates potent CBD extracts with profound effects. —Carol Lee, Discover Magazine, 3 Apr. 2024

Word History

Etymology

Noun

Middle English propietarie, from Anglo-French, from Medieval Latin propietarius, from Late Latin, adjective — see proprietary entry 2

Adjective

Late Latin proprietarius, from Latin proprietas property — more at property

First Known Use

Noun

15th century, in the meaning defined at sense 1

Adjective

1589, in the meaning defined at sense 1

Kids Definition

proprietary

1 of 2 noun

pro·​pri·​etary

p(r)ə-ˈprī-ə-ˌter-ē

plural proprietaries

: proprietor sense 1

proprietary

2 of 2 adjective

1

a

: of or relating to a proprietor

proprietary rights

b

: resembling that of a proprietor

a proprietary pride in their hometown

2

: made and sold by one having the exclusive right to manufacture and sell

a proprietary drug

3

: privately owned and managed

a proprietary nursing home

Medical Definition

proprietary

1 of 2 noun

pro·​pri·​e·​tary p(r)ə-ˈprī-ə-ˌter-ē 

plural proprietaries

: something that is used, produced, or marketed under exclusive legal right of the inventor or maker

specifically : a drug (as a patent medicine) that is protected by secrecy, patent, or copyright against free competition as to name, product, composition, or process of manufacture

proprietary

2 of 2 adjective

1

: used, made, or marketed by one having the exclusive legal right

a proprietary drug

2

: privately owned and managed and run as a profit-making organization

a proprietary clinic

Legal Definition

proprietary

1 of 2 noun

pro·​pri·​e·​tary prə-ˈprī-ə-ˌter-ē 

plural proprietaries

1

: something that is used, produced, or marketed under exclusive legal right of the inventor or maker

specifically : a drug (as a patent medicine) that is protected by secrecy, patent, or copyright against free competition as to name, product, composition, or process of manufacture

2

: a business secretly owned by and run as a cover for an intelligence operation

proprietary

2 of 2 adjective

1

a

: held as property of a private owner

b

: of, relating to, or characteristic of a proprietor

proprietary rights

2

: used, made, or marketed by one having the exclusive legal right

a proprietary process

3

: privately owned and managed and run as a profit-making organization

a proprietary insurer

a proprietary clinic

4

: of or relating to the acts of a municipality which profit or benefit the municipality and for which it is answerable in negligence