The Collaborative International Dictionary of English v.0.48:

Ghat \Ghat\ Ghaut \Ghaut\, n. [Hind. gh[=a]t.]
   [1913 Webster]
   1. A pass through a mountain. [India] --J. D. Hooker.
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   2. A range of mountains. --Balfour (Cyc. of Ind. ).
      [1913 Webster]

   3. Stairs descending to a river; a landing place; a wharf.
      [India] --Malcom.
      [1913 Webster]

WordNet (r) 3.0 (2006):

ghat
    n 1: stairway in India leading down to a landing on the water