The Collaborative International Dictionary of English v.0.48:

Moor \Moor\ (m[=oo]r), v. t. [imp. & p. p. Moored (m[=oo]rd);
   p. pr. & vb. n. Mooring.] [Prob. fr. D. marren to tie,
   fasten, or moor a ship. See Mar.]
   1. (Naut.) To fix or secure, as a vessel, in a particular
      place by casting anchor, or by fastening with cables or
      chains; as, the vessel was moored in the stream; they
      moored the boat to the wharf.
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   2. Fig.: To secure, or fix firmly. --Brougham.
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The Collaborative International Dictionary of English v.0.48:

Mooring \Moor"ing\, n.
   1. The act of confining a ship to a particular place, by
      means of anchors or fastenings.
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   2. That which serves to confine a ship to a place, as
      anchors, cables, bridles, etc.
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   3. pl. The place or condition of a ship thus confined.
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            And the tossed bark in moorings swings. --Moore.
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   Mooring block (Naut.), a heavy block of cast iron sometimes
      used as an anchor for mooring vessels.
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WordNet (r) 3.0 (2006):

mooring
    n 1: a place where a craft can be made fast [syn: mooring,
         moorage, berth, slip]
    2: (nautical) a line that holds an object (especially a boat) in
       place [syn: mooring, mooring line]