1.  Wholly committed to something, as to an ideal, political cause, or personal goal: a dedicated artist.
2.  Wet apart or reserved for a specific use or purpose: We don’t need a computer but a dedicated word processor.
3.  (Of machine parts, electrical components, hardware, etc.) made or designed to interconnect exclusively with one model or a limited range of models in a manufacturer’s line: The new tractors use only high-priced dedicated accessories.