n.
Pronunciation: ' band- ˌ width
Function: noun
Date: 1930
1 : a range within a band of wavelengths, frequencies, or energies especially : a range of radio frequencies which is occupied by a modulated carrier wave, which is assigned to a service, or over which a device can operate
2 : the capacity for data transfer of an electronic communications system <graphics consume more bandwidth than text does> especially : the maximum data transfer rate of such a system <a bandwidth of 56 kilobits per second>