1 (used about goods) made and sold by a particular company and protected by a registered trade name ﹙商品﹚专卖的，专利的，专营的: proprietary software 专营软件proprietary brands 专利品牌

2 relating to an owner or to the fact of owning sth 所有人的；所有权的: The company has a proprietary right to the property. 公司拥有这笔财产的所有权。