proprietary colony
— Noun
– English
～ a colony given to a proprietor to govern (in 17th century)
proprietary
— Noun
– English
～ an unincorporated business owned by a single person who is responsible for its liabilities and entitled to its profits
proprietary drug
— Noun
– English
～ a drug that has a trade name and is protected by a patent (can be produced and sold only by the company holding the patent)
proprietary
— Adjective
– English
～ protected by trademark or patent or copyright; made or produced or distributed by one having exclusive rights; "`Tylenol' is a proprietary drug of which `acetaminophen' is the generic form"