stipulation
/ˌstɪp.jəˈleɪ.ʃən/
The act of stipulating; a contracting or bargaining; an agreement.
Something that is stated or stipulated as a condition of an agreement.
If I lend you my car, my only stipulation is that you fill up the gas tank before returning it.
The situation, arrangement, and structure of the stipules.
A goal to be achieved in a chess problem; for example, to checkmate Black within a specified number of moves.