Definition: Timbre is the unique quality of an instrumentâs sound; its âvoice.â. Timbre describes the difference between two tones played in the same pitch and volume.
Cell site placed atop an existing building. A cell site or cell tower is a cellular telephone site where antennae and electronic communications equipment are placed, usually on a radio mast, tower or other high place, to create a cell (or adjacent cells) in a cellular network.
A cell wall is a structural layer that surrounds most types of cells, situated outside the cell membrane. It can be tough, flexible, and sometimes rigid. It provides the cell with both structural support and protection, and also acts as a filtering mechanism.