One who owns or owns and manages a business or other such establishment.
[Probably alteration of Middle English proprietarie; see proprietary.] pro·pri'e·to'ri·al (-tôr'ē-əl, -tōr'-) adj., pro·pri'e·to'ri·al·ly adv., pro·pri'e·tor·ship' n.
1639, "owner, by royal grant, of an American colony," probably from proprietary (n.) in sense "property owner" (1473, see proprietary). In general sense of "one who holds something as property" it is attested from 1645.
Main Entry: pro·pri·e·tor Pronunciation: pr&-'prI-&-t&r Function: noun : one who has legal right or exclusive title to something :OWNER; also: one (as a lessee) having an interest (as control or present use) less than absolute or exclusive right