The Collaborative International Dictionary of English v.0.48:

Corundum \Co*run"dum\ (k[-o]*r[u^]n"d[u^]m), n.; pl. Corundums
   (k[-o]*r[u^]n"d[u^]mz). [Also corindon.] [From Hind. kurand
   corundum stone.] (Min.)
   The mineral alumina (Al2O3), as found native in a
   crystalline state. Transparent varieties are used as
   gemstones, including sapphire, which is the fine blue
   variety; the oriental ruby, or red sapphire; the oriental
   amethyst, or purple sapphire; and adamantine spar, the
   hair-brown variety. It is the hardest substance found native,
   next to the diamond.
   [1913 Webster +PJC]

   Note: The name corundum is sometimes restricted to the
         non-transparent or coarser kinds. Emery is a
         dark-colored granular variety, usually admixed with
         magnetic iron ore.
         [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Emery \Em"er*y\, n. [F. ['e]meri, earlier ['e]meril, It.
   smeriglio, fr. Gr. ?, ?, ?, cf. ? to wipe; perh. akin to E.
   smear. Cf. Emeril.] (Min.)
   Corundum in the form of grains or powder, used in the arts
   for grinding and polishing hard substances. Native emery is
   mixed with more or less magnetic iron. See the Note under
   Corundum.
   [1913 Webster]

   Emery board, cardboard pulp mixed with emery and molded
      into convenient.

   Emery cloth or Emery paper, cloth or paper on which the
      powder of emery is spread and glued for scouring and
      polishing.

   Emery wheel, a wheel containing emery, or having a surface
      of emery. In machine shops, it is sometimes called a buff
      wheel, and by the manufacturers of cutlery, a glazer.
      [1913 Webster]

WordNet (r) 3.0 (2006):

emery
    n 1: a hard grey-black mineral consisting of corundum and either
         hematite or magnetite; used as an abrasive (especially as a
         coating on paper)

Moby Thesaurus II by Grady Ward, 1.0:

32 Moby Thesaurus words for "emery":
   aluminum oxide, auto polish, colcothar, corundum, crocus,
   emery board, emery paper, file, garnet, grindstone, hone,
   nail file, novaculite, oilstone, polishes, pumice, pumice stone,
   rasp, rottenstone, rouge, rubstone, sandpaper, shoe polish,
   silicon carbide, silver polish, steel, strap, strop, wax, whetrock,
   whetstone, whittle



U.S. Gazetteer Counties (2000):

Emery -- U.S. County in Utah
   Population (2000):    10860
   Housing Units (2000): 4093
   Land area (2000):     4451.851467 sq. miles (11530.241878 sq. km)
   Water area (2000):    9.690958 sq. miles (25.099464 sq. km)
   Total area (2000):    4461.542425 sq. miles (11555.341342 sq. km)
   Located within:       Utah (UT), FIPS 49
   Location:             39.159521 N, 110.863388 W
   Headwords:
    Emery
    Emery, UT
    Emery County
    Emery County, UT


U.S. Gazetteer Places (2000):

Emery, SD -- U.S. city in South Dakota
   Population (2000):    439
   Housing Units (2000): 204
   Land area (2000):     0.349696 sq. miles (0.905708 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.349696 sq. miles (0.905708 sq. km)
   FIPS code:            19420
   Located within:       South Dakota (SD), FIPS 46
   Location:             43.602640 N, 97.620551 W
   ZIP Codes (1990):     57332
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Emery, SD
    Emery


U.S. Gazetteer Places (2000):

Emery, UT -- U.S. town in Utah
   Population (2000):    308
   Housing Units (2000): 140
   Land area (2000):     1.213843 sq. miles (3.143840 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    1.213843 sq. miles (3.143840 sq. km)
   FIPS code:            22870
   Located within:       Utah (UT), FIPS 49
   Location:             38.922337 N, 111.249366 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Emery, UT
    Emery