The crossword solution for the term 'impose limit on' is CAP, which stands for 'Controlling Absolute Parameter'. This is a term used in computer programming to describe a limit or boundary that is set on a particular parameter. This limit can be used to control the range of values that can be accepted by a program or system. It is also used to prevent certain types of errors from occurring. By setting a CAP on a parameter, it ensures that the system will not accept values outside of the predetermined range.