The Collaborative International Dictionary of English v.0.48:

Pudding \Pud"ding\, n. [Cf. F. boudin black pudding, sausage, L.
   botulus, botellus, a sausage, G. & Sw. pudding pudding, Dan.
   podding, pudding, LG. puddig thick, stumpy, W. poten, potten,
   also E. pod, pout, v.]
   1. A species of food of a soft or moderately hard
      consistence, variously made, but often a compound of flour
      or meal, with milk and eggs, etc.
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            And solid pudding against empty praise. --Pope.
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   2. Anything resembling, or of the softness and consistency
      of, pudding.
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   3. An intestine; especially, an intestine stuffed with meat,
      etc.; a sausage. --Shak.
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   4. Any food or victuals.
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            Eat your pudding, slave, and hold your tongue.
                                                  --Prior.
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   5. (Naut.) Same as Puddening.
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   Pudding grass (Bot.), the true pennyroyal (Mentha
      Pulegium), formerly used to flavor stuffing for roast
      meat. --Dr. Prior.

   Pudding pie, a pudding with meat baked in it. --Taylor
      (1630).

   Pudding pipe (Bot.), the long, cylindrical pod of the
      leguminous tree Cassia Fistula. The seeds are separately
      imbedded in a sweetish pulp. See Cassia.

   Pudding sleeve, a full sleeve like that of the English
      clerical gown. --Swift.

   Pudding stone. (Min.) See Conglomerate, n., 2.

   Pudding time.
      (a) The time of dinner, pudding being formerly the dish
          first eaten. [Obs.] --Johnson.
      (b) The nick of time; critical time. [Obs.]
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                Mars, that still protects the stout,
                In pudding time came to his aid.  --Hudibras.
          [1913 Webster] Pudding fish

WordNet (r) 3.0 (2006):

pudding
    n 1: any of various soft thick unsweetened baked dishes; "corn
         pudding"
    2: (British) the dessert course of a meal (`pud' is used
       informally) [syn: pudding, pud]
    3: any of various soft sweet desserts thickened usually with
       flour and baked or boiled or steamed

Moby Thesaurus II by Grady Ward, 1.0:

106 Moby Thesaurus words for "pudding":
   Charlotte, albumen, batter, blubber, bonnyclabber, breeze, butter,
   carrot pudding, cataplasm, chocolate mousse, clabber, clay,
   cornstarch, cream, crush, curd, cushion, custard, dental pulp,
   dough, down, duff, egg white, eiderdown, feather bed, feathers,
   flan, fleece, floss, flue, fluff, foam, gaum, gel, gelatin, glair,
   glop, glue, gluten, goo, gook, goop, gruel, gumbo, gunk, jam, jell,
   jelly, junket, kapok, loblolly, mash, molasses, mousse, mucilage,
   mucus, mush, pap, paper pulp, paste, pillow, pith, plaster,
   plum pudding, plush, porridge, poultice, puff, pulp, pulp lead,
   pulpwood, puree, putty, rag pulp, rennet, rob, rubber, satin,
   sauce, semifluid, semiliquid, silk, size, smash, soup, sponge,
   squash, starch, steamed pudding, sticky mess, sulfate pulp,
   sulfite pulp, swansdown, syllabub, syrup, tapioca pudding,
   thistledown, treacle, trifle, vanilla pudding, velvet, wax,
   white lead, wood pulp, wool, zephyr