A wide band of electromagnetic frequencies
"The satellite dish was calibrated to receive a broad band of electromagnetic frequencies from deep space."
In plain English: Broadband is a fast internet connection that lets you stream videos and play games without waiting for pages to load.
"We upgraded our internet connection to get faster broadband for streaming movies."
Usage: In everyday usage, broadband is a noun referring to high-speed internet access rather than a technical range of electromagnetic frequencies. You would use this term when discussing home or office connectivity plans that support fast data transmission for streaming and browsing.
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)
"The new broadband infrastructure allows our neighborhood to stream high-definition videos while simultaneously handling dozens of phone calls without any lag."
Of, pertaining to, or carrying a wide band of electromagnetic frequencies
"The engineer adjusted the antenna to ensure the broadband signal captured the full spectrum without interference from neighboring channels."
In plain English: Broadband means having an internet connection that is fast enough to let you do many things at once without waiting.
"The broadband internet connection in my apartment is much faster than the old dial-up one."
Usage: Use "broadband" as an adjective only when describing high-speed internet connections that transmit data over a wide range of frequencies. In everyday conversation, it modifies nouns like "service" or "connection" to distinguish fast digital access from slower dial-up alternatives.
The word broadband is a compound formed from the words "broad" and "band." It was first used to describe high-speed internet connections that transmit data across a wide range of frequencies simultaneously.