Every government, every company, has secrets, has proprietary information.
Moreover, proprietary trading by banks was not a primary cause of the losses that led to the bailouts by the federal authorities.
Nor did Microsoft transform its proprietary operating system into open-source code.
Weill famously curtailed the activities of his proprietary traders after serious losses in 1998.
That data is available only to publishers through their vendors and is proprietary unless released to the public.
The disagreements in question are proprietary disagreements in government, relating to proprietary private interests.
It will readily be seen how advantageous these proprietary rights must have been to the wife.
The Land Bill of 1870 gave the tenants a proprietary right in their holdings.
The proprietary interest which she had always felt in him was more than ever hers now.
The proprietary beef foods are also valueless as infant foods.
mid-15c., "possessing worldly goods in excess of a cleric's needs," from Medieval Latin proprietarius "owner of property," noun use of Late Latin adjective proprietarius "of a property holder," from Latin proprietas "owner" (see property). Meaning "held in private ownership" is first attested 1580s. The word was used earlier in English as a noun meaning "proprietor," also "worldly person" (c.1400), from a noun use in French and Medieval Latin.
proprietary pro·pri·e·tar·y (prə-prī'ĭ-těr'ē)
Exclusively owned, as of a hospital.
Owned by an individual or corporation under a trademark or patent, as of a drug.