Duo- (Duo-)

Duo- (duo-) is a prefix meaning two.

This Latin prefix is ​​used in words of different languages ​​to denote duality or pairing. For example:

1. duopoly - a market structure in which two companies dominate
2. duet - a piece of music for two performers
3. duodenum - a section of the small intestine about 25 cm long (duodenum)
4. double - second copy of something
5. duplex - a system that allows simultaneous two-way communication

The prefix duo- indicates that we are talking about two objects, parts, elements, etc. It is widely used in scientific terminology to denote the duality or pairing of phenomena, structures, and processes.