Preclude \Pre*clude"\, v. t. [imp. & p. p. Precluded; p. pr. & vb. n. Precluding.] [L. praecludere, praeclusum; prae before + claudere to shut. See Close, v.]
1. To put a barrier before; hence, to shut out; to hinder; to stop; to impede. The valves preclude the blood from entering the veins. --E. Darwin.
2. To shut out by anticipative action; to prevent or hinder by necessary consequence or implication; to deter action of, access to, employment of, etc.; to render ineffectual; to obviate by anticipation. This much will obviate and preclude the objections. --Bentley.

See more meaning on Precluding...

• 2013 U.S. Open golf: Tee times and pairings for Friday
  As forecasted, some nasty weather hit Merion Golf Club on Thursday, precluding completion of the first round of the U.S. Open. The first weather delay came just two hours into the tournament before 9 a.m. ET and forced the players to sit around for more than three hours as the Philadelphia area was dumped on. Read more on this news related to 'Precluding'
• Hasan Rowhani To Replace Mahmoud Ahmadinejad As Iran’s President
  Hasan Rowhani has won his election bid and will replace Mahmoud Amadinejad as president of Iran. Rowhani, a cleric backed by reformist groups within Iran, won the election with over 50% of the popular vote, thus precluding a two-man runoff, … Read more on this news related to 'Precluding'
• Lagarde Avoids Charges in Sarkozy-Ally Case as IMF Support Holds
  After two days of questioning, the court named Lagarde -- who was French finance minister under Sarkozy -- a material witness in the case. The status, while not precluding charges later, shouldn’t hurt her ability to stay at the IMF helm, said Jacob Kirkegaard , a senior fellow at the Peterson Institute for International Economics in Washington . Read more on this news related to 'Precluding'