hog \hog\ ho^g, n. prob. akin to e. hack to cut, and
   meaning orig., a castrated boar; cf. also w. hwch swine, sow,
   armor. houc'h, hoc'h. cf. haggis, hogget, and
   hoggerel.
   1. zool. a quadruped of the genus sus, and allied genera
      of suidae; esp., the domesticated varieties of sus
      scrofa, kept for their fat and meat, called,
      respectively, lard and pork; swine; porker;
      specifically, a castrated boar; a barrow.
      1913 webster

   note: the domestic hogs of siam, china, and parts of southern
         europe, are thought to have been derived from sus
         indicus.
         1913 webster

   2. a mean, filthy, or gluttonous fellow. low.
      1913 webster

   3. a young sheep that has not been shorn. eng.
      1913 webster

   4. naut. a rough, flat scrubbing broom for scrubbing a
      ship's bottom under water. --totten.
      1913 webster

   5. paper manuf. a device for mixing and stirring the pulp
      of which paper is made.
      1913 webster

   bush hog, ground hog, etc.. see under bush, ground,
      etc.

   hog caterpillar zool., the larva of the green grapevine
      sphinx; -- so called because the head and first three
      segments are much smaller than those behind them, so as to
      make a resemblance to a hog's snout. see hawk moth.

   hog cholera, an epidemic contagious fever of swine,
      attended by liquid, fetid, diarrhea, and by the appearance
      on the skin and mucous membrane of spots and patches of a
      scarlet, purple, or black color. it is fatal in from one
      to six days, or ends in a slow, uncertain recovery. --law
      farmer's veter. adviser.

   hog deer zool., the axis deer.

   hog gum bot., west indian tree symphonia globulifera,
      yielding an aromatic gum.

   hog of wool, the trade name for the fleece or wool of sheep
      of the second year.

   hog peanut bot., a kind of earth pea.

   hog plum bot., a tropical tree, of the genus spondias
      spondias lutea, with fruit somewhat resembling plums,
      but chiefly eaten by hogs. it is found in the west indies.
      

   hog's bean bot., the plant henbane.

   hog's bread.bot. see sow bread.

   hog's fennel. bot. see under fennel.

   mexican hog zool., the peccary.

   water hog. zool. see capybara.
      1913 webster
see also:
haggis hogget hoggerel sus suidae sus scrofa 
lard pork sus indicus bush hog ground hog 
bush ground hog caterpillar hawk moth hog cholera 
hog deer hog gum symphonia globulifera hog of wool hog peanut 
hog plum spondias spondias lutea hog's bean hog's bread 
sow bread hog's fennel fennel mexican hog water hog 
capybara