<operating system> A version of BSD Unix with an emphasis on security. A lot of security work that is ported to other free operating systems originates with OpenBSD and a lot of code review is done here.
Sub-projects of OpenBSD include implementations of SSH, ntpd, and CVS, to be called OpenCVS.
Try this search on Wikipedia, OneLook, Google
Nearby terms: op code « open « open box testing « OpenBSD » open/closed principle » open-collar worker » Open DataBase Connectivity