broadband
adjective
1. of or relating to or being a communications network in which the bandwidth can be divided and shared by multiple simultaneous signals (as for voice or data or video)
2. responding to or operating at a wide band of frequencies
- a broadband antenna
Similar word(s): wideband
noun
1. (telecommunications) A wide band of electromagnetic frequencies
2. (Internet) An internet connection provisioned over an existing service using alternate signal frequencies such as ADSL or cable modem.