The Collaborative International Dictionary of English v.0.48:

Snout \Snout\ (snout), n. [OE. snoute, probably of Scand, or Low
   German origin; cf. LG. snute, D. snuit, G. schnauze, Sw.
   snut, snyte, Dan. snude, Icel. sn?ta to blow the nose;
   probably akin to E. snuff, v.t. Cf. Snite, Snot,
   Snuff.]
   1. The long, projecting nose of a beast, as of swine.
      [1913 Webster]

   2. The nose of a man; -- in contempt. --Hudibras.
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   3. The nozzle of a pipe, hose, etc.
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   4. (Zool.)
      (a) The anterior prolongation of the head of a gastropod;
          -- called also rostrum.
      (b) The anterior prolongation of the head of weevils and
          allied beetles.
          [1913 Webster]

   Snout beetle (Zool.), any one of many species of beetles
      having an elongated snout and belonging to the tribe
      Rhynchophora; a weevil.

   Snout moth (Zool.), any pyralid moth. See Pyralid.
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The Collaborative International Dictionary of English v.0.48:

Snout \Snout\, v. t.
   To furnish with a nozzle or point.
   [1913 Webster]

WordNet (r) 3.0 (2006):

snout
    n 1: a long projecting or anterior elongation of an animal's
         head; especially the nose [syn: snout, neb]
    2: informal terms for the nose [syn: beak, honker, hooter,
       nozzle, snoot, snout, schnozzle, schnoz]
    3: beaklike projection of the anterior part of the head of
       certain insects such as e.g. weevils [syn: snout,
       rostrum]