ASIC design, or Application-Specific Integrated Circuit design, refers to the process of creating customized integrated circuits that are tailored for a specific application or task. This design approach allows for optimized performance, power efficiency, and size, making ASICs ideal for consumer electronics, telecommunications, and other specialized functions. The use of hardware description languages like VHDL and Verilog is essential in this process, as they enable engineers to describe the functionality and structure of the circuit before it is manufactured.