stipulation

noun

1. 1

   a restriction that is insisted upon as a condition for an agreement

2. 2

   an assumption on which rests the validity or effect of something else

3. 3

   (law) an agreement or concession made by parties in a judicial proceeding (or by their attorneys) relating to the business before the court; must be in writing unless they are part of the court record

   a stipulation of fact was made in order to avoid delay