Hardware Description Language A language to describe circuits, the base of computer hardware, etc. Speaking of a HDL usually assumes that digital circuits are described, but there are languages for the description of analog circuits too. Examples of such languages are [[Verilog-HDL]], [[VHDL]], [Niklaus Wirth]'s LoLa, or the [Perl] module [[Perl::HDL]]. ---- [Category Acronym]