PDL /P-D-L/, /pid'l/, /p*d'l/ or /puhd'l/ 1. n. `Program Design Language'. Any of a large class of formal and profoundly useless pseudo-languages in which management forces one to design programs. Too often, management expects PDL descriptions to be maintained in parallel with the code, imposing massive overhead to little or no benefit. See also flowchart. 2. v. To design using a program design language. "I've been pdling so long my eyes won't focus beyond 2 feet." 3. n. `Page Description Language'. Refers to any language which is used to control a graphics device, usually a laserprinter. The most common example is, of course, Adobe's PostScript language, but there are many others, such as Xerox InterPress, etc.

pdl /pid'l/ or /puhd'l/ [abbreviation for `Push Down List'] n. 1. In ITS days, the preferred MITism for stack. See overflow pdl. 2. Dave Lebling, one of the co-authors of Zork; (his network address on the ITS machines was at one time pdl@dms). 3. Rarely, any sense of PDL, as these are not invariably capitalized.