Definition of proprietary in English:

proprietary

Line breaks: pro¦pri|etary
Pronunciation: /prəˈprʌɪət(ə)ri
 
/

adjective

  • 1Relating to an owner or ownership: the company has a proprietary right to the property
    More example sentences
    • So far as one knows, there is no ownership or proprietary rights over flowing waters.
    • The common law tradition posed fewer difficulties for the Crown as long as its vocabulary was informed by ideas of feudal tenure rather than proprietary ownership.
    • That sense of ownership sometimes includes a proprietary attitude toward waterways abutting a Texan's land.
  • 1.1Behaving as if one owned something or someone: he looked about him with a proprietary air
    More example sentences
    • ‘They don't have anything like bouncy castles here,’ says Louise, striding with a proprietary air through the long grass of what one day soon will be their own mini theme park.
    • As a senior member of the men's group that wandered in and out of the café all day, he nursed a kind of proprietary air about the place.
    • She nurses a proprietary air about the place and has a particular fetish about the driveway.
  • 2(Of a product) marketed under and protected by a registered trade name: proprietary brands of insecticide
    More example sentences
    • Those catalysts could include new products, demographic trends, proprietary products, increased market share, or a change in cost structure.
    • I expect this will only continue to get worse as more and more companies attempt to ‘protect’ their proprietary products and services.
    • There's a high premium on proprietary product.

Origin

late Middle English (as a noun denoting a member of a religious order who held property): from late Latin proprietarius 'proprietor', from proprietas (see property).

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