英汉词典

1. 专利的；专卖的
    Proprietary substances or products are sold under a trade name.

    e.g. ...some proprietary brands of dog food...
           一些狗粮的专利品牌
    e.g. We had to take action to protect the proprietary technology.
           我们必须采取措施保护专利技术。

2. （态度）以所有者自居的
    If someone has a proprietary attitude towards something, they act as though they own it.

proprietary

    e.g. Directors weren't allowed any proprietary airs about the product they made.
           主管们不允许对他们生产的产品以所有者自居。