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Meaning of “proprietary” in the English Dictionary

"proprietary" in British English

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(Definition of proprietary from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"proprietary" in American English

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proprietaryadjective [not gradable]

us   /prəˈprɑɪ·ɪˌter·i/
owned and legally controlled by a particular company: This is proprietary software, and you have no right to copy it without a license from the owner.
(Definition of proprietary from the Cambridge Academic Content Dictionary © Cambridge University Press)

"Proprietary" in Business English

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Proprietaryadjective

uk   /prəˈpraɪətəri/ us   /prəˈpraɪəteri/ written abbreviation Pty
LAW used in the names of companies in Australia, New Zealand, and South Africa: Tenneco Energy Australia Pty Ltd

proprietaryadjective [before noun]

uk   /prəˈpraɪətəri/ us   /prəˈpraɪəteri/
MARKETING, COMMERCE used to describe a product that is made and sold by a particular company whose name, or a name that it owns, is on the product: The products were developed using two proprietary and patented technologies. The company focused too heavily proprietary products as the source of competitive advantage. a proprietary brand/name a proprietary drug/medicine proprietary software/systems
LAW relating to ideas or information that belong to one particular company and can only be used by them: proprietary content/data/information The equation used to produce the estimates is proprietary.
relating to an owner or to the fact of owning something: The employees have a proprietary interest in the company.
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(Definition of Proprietary from the Cambridge Business English Dictionary © Cambridge University Press)
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