D defs.my
Entry 1 sense Webster, 1913

Preclusion

/prĭk-lo͞ozh'-ən/ · Pre·clu·sion · IPA /prɪklˈuːʒən/
01 n. The act of precluding, or the state of being precluded; a shutting out.
  1. 1.
    The act of precluding, or the state of being precluded; a shutting out.