When you keep in touch in some way or other, eg. by talking (=when you communicate), you spread some pieces of information (=extend them) out which can be understood.
its short for MIDI musical instrument digital interface
a midi file. Midi is short for Musical Instrument Digital Interface.
It is a tool for comm; that is, a writing instrument.
can you ring someone with a piano? no. so its not!
According to FileInfo.net, it is a Korg Instrument Bank File. http://www.fileinfo.net/extension/pcg
external communication is usually more formal. External communication is an extension of the organization and can be an important channel for marketing the company's image, mission, products, and/or services.
Net is short for network & com or comm is short for communication.
For example, the instrument to measure the force may have a spring. The elongation (extension) of the spring would be proportional to the force.
The shofar is an ancient communication instrument. It's origins are unknown.
It is extending the product line and length and designing the promotional strategy like wise.
The spinal cord is an extension of the brain, specifically the brainstem. It serves as a major pathway for communication between the brain and the rest of the body, transmitting sensory and motor signals to and from the brain.
cornu