The meaning of PROPRIETARY is of, relating to, or characteristic of an owner or title holder. How to use proprietary in a sentence. Did you know?

PROPRIETARY definition: belonging to a proprietor. See examples of proprietary used in a sentence.

PROPRIETARY definition: 1. relating to owning something, or relating to or like an owner: 2. Proprietary goods are made…. Learn more.

The brand name of a proprietary drug is protected by a trademark. A generic drug is a copy of a proprietary drug (one with a brand name). Proprietary drugs or other substances are …

Definition of proprietary adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Dec 14, 2025 · It was reported that the recipes for the secret sauce and grinder sandwiches were proprietary, known only to the current president of the corporation and the former owner of the …

manufactured and sold only by the owner of the patent, formula, brand name, or trademark associated with the product: proprietary medicine. privately owned and operated for profit: …

There are 13 meanings listed in OED's entry for the word proprietary, three of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Definition of proprietary. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.

Proprietary refers to property: things that are owned by individuals or businesses. People talk about proprietary drugs, proprietary software, and other things that can only be made and sold …