<p><strong>adjective</strong></p><ul><li>of, relating to, or responsive to a continuous, wide range of frequencies.</li><li>Compare sharp (def 23).</li><li>relating to or denoting a type of high-speed data transmission in which the bandwidth is shared by more than one simultaneous signal: Broadband internet technologies are superior to dial-up connections for streaming video.</li></ul><p><strong>noun</strong></p><ul><li>broadband transmission.</li><li>a broadband internet connection.</li></ul>