Definitions for

**"Cosine"**The sine of the complement of an arc or angle. See Illust. of Functions.

The ratio of the length (in a right triangle) of the side adjacent to an acute angle to the length of the hypotenuse

Cosine of Angle: cos A= Adjacent\Hypotenuse.

Cooperation for Open Systems Interconnection Networking in Europe. European project financed by the European Community (EC) to build a communication network between scientific and industrial entities in Europe. The project ended in 1994.

Cooperation for Open Systems Interconnection Networking in Europe. A program sponsored by the European Commission, aimed at using OSI to tie together European research networks

See primary trigonomic functions.