certificate authoritynoun [ C ]
ukusIT, INTERNETan online service that makes sure that information that is sent over the internet is kept safe and private:
The most-visited web sites rely on GeoTrust SSL more than any other certificate authority.
英语词典包含110679条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。