plural of letter opener

Someone who sings opera professionally.

(computer graphics) Open Graphics Library: a standard, cross-platform specification for generating 2D and 3D computer graphics.

(computing) A communication protocol among computers and multimedia devices, such as sound synthesizers, which is optimized for modern networking technology.

plural of operational service period

plural of additive operation

plural of order of operations

plural of operating loss

Disaster Management Open Platform for Emergency Networks. A system which provides interoperability interfaces for sharing of emergency-related information to vetted emergency management agencies.

plural of open half space