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proprietary

[pruh-prahy-i-ter-ee] /prəˈpraɪ ɪˌtɛr i/
adjective
1.
belonging to a proprietor.
2.
being a proprietor; holding property:
the proprietary class.
3.
pertaining to property or ownership:
proprietary wealth.
4.
belonging or controlled as property.
5.
manufactured and sold only by the owner of the patent, formula, brand name, or trademark associated with the product:
proprietary medicine.
6.
privately owned and operated for profit:
proprietary hospitals.
noun, plural proprietaries.
7.
an owner or proprietor.
8.
a body of proprietors.
9.
American History. the grantee or owner, or one of the grantees or owners, of a proprietary colony.
10.
11.
something owned, especially real estate.
12.
a proprietary medicine.
13.
Also called proprietary school. a school organized as a profit-making venture primarily to teach vocational skills or self-improvement techniques.
Origin
late Middle English
1400-1450
1400-50; late Middle English (noun) < Medieval Latin proprietārius owner, noun use of Late Latin: of an owner, of ownership. See propriety, -ary
Related forms
proprietarily
[pruh-prahy-i-tair-i-lee, -prahy-i-ter-] /prəˌpraɪ ɪˈtɛər ɪ li, -ˈpraɪ ɪˌtɛr-/ (Show IPA),
adverb
nonproprietary, adjective, noun, plural nonproprietaries.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for proprietary school

proprietary

/prəˈpraɪɪtərɪ; -trɪ/
adjective
1.
of, relating to, or belonging to property or proprietors
2.
privately owned and controlled
3.
(med) of or denoting a drug or agent manufactured and distributed under a trade name Compare ethical (sense 3)
noun (pl) -taries
4.
(med) a proprietary drug or agent
5.
a proprietor or proprietors collectively
6.
  1. right to property
  2. property owned
7.
Also called lord proprietary. (in Colonial America) an owner, governor, or grantee of a proprietary colony
Derived Forms
proprietarily, adverb
Word Origin
C15: from Late Latin proprietārius an owner, from proprius one's own
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for proprietary school

proprietary

adj.

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.

Online Etymology Dictionary, © 2010 Douglas Harper
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proprietary school in Medicine

proprietary pro·pri·e·tar·y (prə-prī'ĭ-těr'ē)
adj.

  1. Exclusively owned, as of a hospital.

  2. Owned by an individual or corporation under a trademark or patent, as of a drug.

n.
A proprietary medicine.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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