proprietary Meaning in the Cambridge English Dictionary
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Meaning of “proprietary” in the English Dictionary

"proprietary" in British English

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proprietaryadjective [before noun]

uk   /prəˈpraɪə.tər.i/  us   /-ter.i/
relating to ​owning something, or ​relating to or like an ​owner: I just ​assumed he ​owned the ​place - he had a proprietary ​air about him. Proprietary ​goods are made and ​sent out by a ​particularcompany whose ​name is on the ​product: proprietary ​medicines
(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 ​legallycontrolled by a ​particularcompany: 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 ​patentedtechnologies. The ​companyfocused too ​heavily proprietary ​products as the ​source of ​competitiveadvantage. 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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